Requirements for lime specifications of ASTM, BSI, CSA, NLA

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CANADA Ser TKL B92 no.

1.6

c. 2

A N ~ L V Z ~ ~

REQUIREMENTS

FOR

LIME

SPECIFICATIONS

OF ASTM,

BSI, CSA,

N U

compiled by B.

PI.

O'Rslly

This l n f o m a t i o n

has

been

assembled

t o provide

a

comparative

reference on

the

requirements for

lkme

as

s e t

out in

specifications of t h e American S o c P e t y for Testlng

I.laterials, British

Standards

Institution,

CanadIan

Standards AssocTation, and N a t i o n a l

Lime

Association.

The

headings under which cornparlson is made

were

d i c t a t e d by the

headings used

in

the specifications.

These

headings

were

n o t always complately interchangeable

mong t h e

specifications, particularly

the North

American as

opposed

to the BrltTsh

s p e c T f i c a t i o n ,

'-.

EfUlLDllrlG RESEARCH

.

-

L[BF'A"V

-

CCT ;ctj 1955

\ NATIOMAL RESEfiRCFC CUUFICIL )

+ -

.

=

,

=

-

:*

v

--.

DlVlSlON O F BUILDIMG RESEARCH NATIONAL R E S E A R C H COUNCIL o O T T A W A , C A N A D A

NATIONAL RESEARCH COr,7NC

IL

I

_ERRATA

_and

_ADDENDA

_{t o}

Building

Note 16:

"Requirements

f o r

Lime

Specifications

of ASTM,

BSI, CSA, NLA"

compiled

by

B.

H.

OWKely

p . 5

A.9.b

read C . 1 2 . b

for

C.1l.b.

p.12

C.6.b

( 3 r d .

paragraph),

read

5 0 O ~ .

f o r 40'~. .. .

p .

13

C

.7.d

~ e a d

( s i c )

-

a f t e r last s e n t e n c e .

p .

16

D . 3

.h

read

- ( ~ g ~ C a 0 ) $ .

p . 1 7

0.7.8

read

A.7.a

f o r

A.7.d.

D.7.b

read

A.7.b

f o r

A-6.b.

p.18

E.

Hydraulic

Hydmted Lime.

In

Note

read "ASTM"

specificatlon instead of

thls

specification.

p.21

E.4.a

(second

paragraph),

f o r "two such samples"

read

''two

p a t s

( 4

in.

square by 1/16

in.

to

118

in.

)

E . 6 . b

bracket Clasa

A

only,

p.22

E.9.b

read

C.12.b

for

A.9.b.

p . 2 3

E . 1 2 . b

read

C.11.b

.for

C.1O.b.

Table

of

Conten-t;s

Page

A.1

Uses

A . 2 Scape Chemical

CornpositSon

"2

A, sounilness

A . 5

Popp5ng and P t t t i n g A,b P l a a t S c i t g

A , 7

ResPdue

A,

8

Water Retent

i ~ i t y

A.

9

Insoluble

Matter

B , 1

Uses

B.2

Scope Chemical Composition

B.

Soundne s

s

Popping and P L t t i n g E , b

PZastfcZty

B-7

ResSdue B,

8

Water R e t

ent

i v i t y Uses Scape

Chemical Csnaposit Eon Soundne s s

Pitting and

PoppZng Flast ic L t y Residue Fineness !$at er R e t

entLa5tg

Volume Y i e l d H y d r a u l i c Strength Insoluble

Matter

Uses Scope Chem5caS

Compositfon

Soundness

Popping and

Pitting

P l a s t i c i t y

Residue

Water R e t e n t T v i t g

Insoluble

Matter

T a b l e

o f

Contents

(con%

) Page

E,

HYDRAULIC

EKDREITED L I ~ , . . . , . . , ,

18

Uses Scope C h e m i c a l CamposZtien Soundness

Pitting

and

Poppfng

Plasticity

Residue

Water

B e t

e n t

ivi%y Insoluble

Matter

Time

of

Setting

Compressive Strength RydrauLSc Strength

EEQVIRE~EIITS FOR LIMl

SPECZFICATIOTS

OF

ASTM,

BSI,

CSA, NLA

compiled by

B,

M.

0'3Ce11y

A. NORMAL

FZWZSYING

HYDMTED

LLM3

A,3.

Uses

A . 1 . a RSTM

For

u s e as an a d d i t i o n

to portland cement,

for

stucco,

m o r t m and scratch, brown,

and

finlsh

c o a t of p l a s t e r .

A , l , b BSS Far f

inishjng

c o a t , c o m s e

stuff

and b u i l d i n g m o r t a r .

A C S A As in

ASTM.

A , l , d NZR Fos u s e as the major

c o n s t t t u e n t of p l a s t e r i n g

finish

c o a t and f o r

use

~ r h e r e Pfasonrs hydrate w o u l d he used.

A . 2 Scope

A.2.a ASTE Covers B-type

as dfstlnct

f r o m

S-type

f i n i s h i n g hydrated lime.

A.2.b BSS Covers lime

s u i t a b l e

f o r plastering finish coat,

c o a r s e s t u f f

and

' t s u i l d i ~ g mortar*,

and

l h a

s u i t a b l e

f o r

use

in c o a r s e

stuff and b u i l d i n g m o r t a r only. T h e

l a t t e r

5 s c o n s i d e r e d under S e c t i o n

D.

f l . 2 , ~ CSA A s in ASTM.

A o 2 . d X U Covers

lime

produced by hydrating

at

atmospheric pyessure,

in

whLch

a

r e l a t i v e l y

l a r g e m o m t of the oxides a r e xmhydrated.

~ ~ 4 . a

ASTN

Bo

requirement.

L4.b

sss

( 2 )

Prepare

4

t e s t specimens

separatelg

by

adding

70

ml. water

(12

-

20°C) t o

70

gm, hydxa-t;ed

lime,

soaking

for

two

hours f a l l o w e d

by

"knocking

up".

Spread each speclman

on

a non-porous

p l a t e , add

10

gm,

p l a s t e r

of

parzs,

Mfx,

axd f o r m the d x k u r e h t o pats

us9ng

1.1% m o u l d s 10 cm, in d l a m e t e r and

5

mm, deep.

Let

s s t

f o r

$

hour

then

d r y at between

35OC,

and

44"~.

,

re

jec-ting

any

pats showing s b l n k a g e cracks

and

replacing them, Subject t h e pat to s a t u r a t e d s t e m

at

atmospheric: p r e s s u r e

for

3

homs,

On

removal

t h e y should show

no

pops

or

pits.

(Ti)

Mix

hydrated

Ib-15 13. pwt by

weight)

p o r t l a n d cement

(1/3

par*) and standard sand

(4

p a r k s ) , Then add

and

mLx

12$ ( a n

dry

weight o f

mix)

of

w a t e r . F L l l greasgd fie Chate32er moulds w i t h

the

m i x , cover t o p

cf

moulds? leave for 1

h o w , measure distance

between p o i n t e r t f p s

and

place in

a

damp

c l o s e t

fox

48

h o u r s , Subject

the

p a t s t a s a t m a t e d steam

for

t b x e e h o u r s . L e t cool and measure the d i s t a n c e between t h e p o i n t e r t i p .

Subtract 1

mm, (for

ex- pansfon of the cement); t h e

r e m a i n i w

expansion

s h a l l

not

exceed 10

m.

6.4.c

CSA

No

requir2men%.

~ ~ 4 . d

nLA

No r equf

r

amen-??.

A , S

Popping

and

P i t t i n g

A,S,a

ASTM

P r ~ p ~ e a lime p u t t y f r o m 100

gm.

of

hydr"ated lime, S o a k

Tf

required

f o r

16

to

24

h o u r s ,

T h e p u t t y

should 'have such a consistency t h a t a p e n e t r a t i o n

05

4

20 ,

5

mnm,

is

obta9ned w i t h

the

rnodiSPed V i c a t

zppmatus,

If

consLstency too d r y , add

w a t e r ;

if

t o o w e t , prepare

a

f r e s h

sample,

T o

the

above puety add 25 gm, of gauging p l ~ s t s r .

Spread o n a glass p l a t e in p ~ t s

8

by

6

by 1 / 8

inch,

trowelling smooth, Let s t a n d overnight

then

p l a c e

in a stearn b a t h and raise

the

temperature to boiling

and k s e p boll2ng f o x

5

hours,

On

removal

the spec5men

shall

be free f r o m pops and p i t s ,

A.5.b

BSS

No

requirement under

this

heading b u t see

~.4.

A,S,o

GSA As

In

ASTM.

~,f,,d NI;R A s LE ASTM except t h a t 3 0 g m g a q i - p l a s t e r

m e

~ ~ 6 . ~ 3

ASTM Wepare

a putty

of

standard consistency

as

d e s c r i b e d under

A,S,a.,

This

putty shall

have

a

p l a s t i c i t y

of not less

than 200

when

t e s t e d

in

t h e

Emleg

plast,f

cimeksr,

A.6.b BSS

No

~ e q u i r s m e n t given under

"~1asticTty"

; under "\brkabil%tg'"the f o l l o w i n g 5 s g9ven:

>Ex hydrated lime

with

an equal weight olh w a t e r at between 1 Z D C , and 20°C,,

l e t

stand

for

24.

hours,

and.

''hozk-upZ'

t h o r o u g h l y ,

in

a pug-mill,

Add ~ ~ a t e s

to thTs putty

or

s u b s t r a c t by

s t a n d b g

on

a clean

porous plate

t i l l

such a

conslstencg

is

attained

t h a t

one

bump

on+the

standmd f l a w t a b l e gives

a

s p ~ e a d of

11 cm.

-

1

mm, This p u t t y of

standard consdstencg s h a l l r e q u i r e

n o t

m o r e than 10 bumps t o effect a spread of 19 cm.

A-6.o:

CSA As in ASTHO

A,6.d

NLA As

in

ASTM,

A , 7

Residue

A.7.a

ASTM Place

PO0

gm. of hydrzted

l h e

{as received) on a

No, 30

sieve

which

i s

n e s t e d

i n t o

a No, 200 s i e v e . Wash t h e line t l w o u g h the sieves by

water

f r o m

a

faucet

25 l e s s than

30 minutes,

Dry

t h e residues

in

a C02-free atmosphere between 212 and

248'~.

Express

residue r e t a i n e d as a p e r c e n t a g e of t h e o r i g i n a l sample w e i g h t . The weight

on

the No,

30

s i e v e should b e added

to

that

on

the

No.

200 sfeve

t o

give

t h e

weight r e t a l n e d on the

No,

200 s i e v e ,

Maximum

percentage to b e r e t a i n e d o n the No,

3O

s i e v e i s 0,s per cent, Flaximum percentage

on

the No. 200

s i e v e

5 s

to

b e

15

per

c e n t ,

A,7.b

BSS

No

requirement

g5ven

under

"Residue1\

Under

the

head2ng "Fineness" the f o l l o w i n g i s

gtven:

Place

100

em,

o f

hydrated lime on a B.S, No,

72

s i e v e nested i n t o a No,

170

s l e v e

and

wash i% t h ~ o u g h t h e

sieves

w i t h

a moderate j e t o f w a t e r

in

less

than

30

minutes.

Dry

the

residues

at 10Q°C.

2

109C.

and r e c o ~ d t h e

weights

as percentages of

the

o r i g i n a l weight of the hydrated

lime,

l i m w n

percentage

to be r e t a i n e d

on

No, 72

sieve

is

5

per cent,

CSA A s

in

ASTM,

A.7.d NLA No requirement under "~esidue". Under

"Fineness"

t h e

f o l l o ~ ~ i n g 5s

gtven:

As

in ASTM except t h a t s o f t l u m p s and

agglomerates

may be

broken

up w i t h t h e

flngers,

by

gentle

bxushLng,

or

by o t h e r '

similar

means,

A.

8

1-rat

er

Retentivity

~ ~ 8 . a

ASTM ?To

requirement.

~ ~ 8 - b

BSS

N o r e q u i r e m e n t ,

A , 8 , r , cSA NO requirement

,

A,

8,d

N U

No

requirement.

A e 9 I n s o l u b l e Matter

A,

9

a a ASTM

No

requirement

A.9.b

BSS

A requirement

i s given

s i m i l a r t o t h a t

given u n d e ~

C.11,b except t h a t the

maximu.%

percentage of

insoluble

matte^ s h a l l

be

1

per

cent.

A.9,c

CSA ?To requi~ernent

.

Al,'3,d I?ZA,

No

requirement.

B-

SPECIAL FINISHIITG KYDRAPED

LSME

3.3.

Uses

B.1.a ASTlrl F o r u s e as

an

a d d i t i o n t o p o r t l a n d cement c o n c r e t e ,

for

s t u c c o ,

m o r t a r

and

scratch,

brotm and finish

c o a t s of p l a s t e ~ ,

B.1.b BSS R e q u ~ e m e n t s g i v e n m d e r A . l . b apply throughout. Please refer

t o

t h a t

specification,

There 9 s

no

subdivision

into normal

and s p e c i a l

SinishLng

hydrated

limes

.

I3.l.c CSA

?To

specLficatbon

exists.

B,f.d IVLA . P r i r n a r ~ i 1 . y a s

t h e major

csnstltuent

of finzsh

c o a t

in

p l a s t e r i n g b u t

may

be

used where

Masonfa

B - 2

Scope

B , 2 , a ASTEI Covers S - t y p e as d i s t h c t

f r o m

N-type

finishing

hydrated

lime,

B,2,b

BSS

No requLrsment, J3,Z.c CSA no

r

eqniremenk

.

B.2,d NZb Covers

a finishing

hydrated 1 h e

in which

t h e percentage of mihydrated o x i d e is L M t e d , B , 3

Chemical

Gompo -

s i t i o n

NIE.

Max.

Max,

M a x , C a O+T:lg 6

co.2

_{Go2 U r k t ~ d r a t ed}

Ncn-Volatile Pt. of' E l s e - O~Ades

as

b a s i s

b

m~mf,

5

where

%

received

_%

- - -

B,3,3. ASTM

95

5

7

8

B , 3 , b BSS PTu

r

eq&ement

B.3,c

CSA ITo

requ5~ernen.t;

%h-

Soundness

B,

4,

a ASTM

?To requirement, %,4,b

BSS

No requirement.

~3.4,~

CSA No requirement.

~ , k , d

DTZR Pbrequf~emenS,.

B.S

Popping and

_---

P i t e i n g

B.S,~,

ASTX Requirements d e s c r i b e d under

f l . 5 , ~

apply.

~ . s , b BSS IT0

rsquT~ement;.

B,S,c.

CSA

TJo

requirement

a

B.6.a ASTE Req~~fremen-bs given

under

A.6.a

apply except

t h a t

any soaking p e ~ i o d

not exceeding

24

hours-may

be

used,

A plasticfty of

at

l e a s t 200 5 s requjred.

I3.6.c

CSA IJorequZrement.

B-6.d

NLA A s d e s c r f b e c l u n d e r A . 6 . d except t h a t any s o a k i n g

p e r i o d

not

exceeding 24 h o u r s

may

b e used with t h e p r o ~ ~ i s o t h a t if

t h e

putty fails to

a t t a i n

the

required p l e s t i c i t y

a f t e r

8 h o u r s ,

but does so

a f t e r soaking f o r f r o m 16

to

24 homs, i-t, s h a l l be deemed to have satisfied t h e requ2rament. A plasticity

af

at l e a s t 200 is sequzred. B.7

Residua

B e ? . a ASTM Requirenent as given under A , 7 . a .

J3,T.b BSS

Yo

requirement.

B.T,d N U I J a r c q u k e m e n t u n d e r t h e h e a d i n g o f "Residue".

Under " ~ S n e n e s s "

i s

g i v e n

the same requirement,

as g i v e n under A . T , d ,

~ . 8 , a

ASTK No r e g ~ ~ e r n e n l ; .

B-8.b BSS

No

r

equi r ement

.

3 . 8 . ~ C S A lTorequ%rernent,

~ ~ 8 . 4

?To requirement.

C,1

Uses

G-1.a

ASTM For s t r u c t m a l purposes.

G,l,b B S S Class 9 fop

finish

coat,

coarse

s t d f and bulldlng

m o r t a r ,

Class

B

for c a w s e stuff and b u i l d i n g m o r t m

only.

C,l.d IKA A l l t y p e s h a v e s a e u s e s a s M a s o n f s h y d r a t e .

If

puttfes

prepared from.

them

meet a p p r o p r i a t e

requirements they may

be used

f o r finishing

c o a t ,

C - 2

Scoae

C,2,a ASTM

Covers crushed, ground,

grmulm, I m p , pebble, a d

pulvorlzed.

These

terms

m e

not

d e f i n e d , C.2.b BSS Covers amp and ground nodhydraulic

and

semL-

hydraulic i h e , b o t h magnesium and

c a l ciwn.

Two classes a r e considered ( S e e C , l , b ) .

C,2,c

CSA A s

in

ASTM.

G.2,d

NLSk Covers lump, pebble, g r a n u l a r , crushed, and g ~ a m d . These terms m e d e f i n e d . Separate s p e c i f i c a t i o n

for

pulverized l i n e , w h i c h is a l s o considered here,

K X K K

mr-mr-

c.4.a

ASTM

No rsqui~emsn';.

A ~ e t h o d ol"

slaking is recommended.

Rereper-ce i s nade

t o BSTP Standard

G,L10

w h i c h does

not

~ o n t a i n a t e s t

f o r

soundness

of.

q u i c k l i r n s ,

A

lime s?ecifIcation

(A,

I,A,

F i l e

Fo,

21-A-2) accepted es

h - e r i s =

St.andwd 5y A S A . , w a s co-sponsored by ASTM and gives t h e f o l l o w i n g t e s t :

Slake a 2001-gkam sample or quickline

to

a f a i r l y s t i f f p u t t y . Age at room t e m p r a t w e

j_n

a c o v e ~ e d vessel f r o m

16

24 horns. Yake a p a s t e f r o m p u t t y

( 2

volumes), sozmd m e t a r e d gypsum p l a s t e r (1 volume) and w a t e r (as required),

Form

1/16-

to

1/8-inch

l a y e r s of this paste

an

4-

bg L~-inch glass p l s t e s , let s e t for t w o horns and p l a c e

ir an

autoclave, Cover to prctect f r o n l i q u i d w a t e r .

Add w a t e r

(I-

t o 2 p e r cent a u t o c l a v e volume). R a i s s p r e s s w e t o 126 p . s , i , Naintain T o r two h o m ~ then r e l e a s e p r e s s u r e

to

a t t a i n a t m o s p h e r i c

pressure

in

about

5

minutes, No pops

or

p i t s

must

b e v i s i b l e .

PTOTE: Ensure a o m d n e s s of gauging p l a s t e r by t e s t i n g as above but w i t h o u t lime,

~ ~ 4 . b

BSS A p a r t

f r o m

saying t h ~ t Quicklfme should

slake

"when

b r o u g h t i n t o c o n t a c t w i t h

no

r e q u k ement;

,

C.~.C CSA No ~ e q u T r e m e n t ,

~ ~ 4 . d

YnA ( 5 ) Slake the quickl2me to t h e manufacturerfs d i r e c t i o n s

s2eving

t h e

p u t t y ( e x c e p t

if prepared

f r o m

p u l ~ e r i z e d

lime!

t h r o u g h a

Fo,

20 sieve, Cool below

8 0 ° ~ ,

To a n

amount

of thls p u t t y containing 20 gm, of

d r y hydrater add 1100 g r a m s of standard Ottawa

sand (-No, 20

+

No, 30 sieve)

t-o

make a m o r t a r of d r y

consf

stency, NaBe o f

this

m o r t a r z p a t

4

rnches square by

l)!inch t h i c k

of

u n i f o r m

thick-

ness and p l a c e Fn a c l o s e t at b e t w s e n

65 and

75'3.

f o r

24

h o w s ,

air

being -*eely

cTrcwlated,

Soak t h e

at

in

w a t e ~

until

a

film o f

w a t e r stands

unabsorbed on the s u r f a c e ,

If

the p a t has cracked t h e

m o ~ t m -

was too

w e t

and should

be

g r e p m e d a g a h .

(iij M I X 2G e a r n s

o f the

m o r t a r t o a t h i c k cream

w i t h w a t e r . Coat p a t with t M s , l e t s t m d

f ~ r

15

minutes and troweT, smooth

a s

t h i n as possible

w i t h -

out t h e sand shcv~Tng t h ~ o u g h . Place in c l o s e t

for

24

horns

as

in [i), examine to

see t h a t t h e r e

c.4.d

(contfd) vessel. B r i n g t h e

w a t e r

to t h e b o i l ,

maintain

boiling

f a r

5

hours

and

l e t c o o l for 1 2 h o u r s ,

The

p a t should

be f r e e

f r o m >ups or

d . i s i n t e g r a t i o n ,

NOTE;

The

m c h a r a c t e ~ i s t i c

vagueness

of this

s p e ~ i f i c a t f on f o r "soundness" arises

f r o m the

f a c t t h a t the

P E A s p e c i f i c a t i o n s t z t e s t h a t a;L quicklime s h a l l b e slaked according

to

t h e

manufacturer f

s i n s t r u c t i o n s

b u t r e f e r s

t o AETH

c

-110-49

for t h e method of testing t h e p u t t y ,

Slnce

C.110-44

has a

soundness

t e s t T o r hydrated lime

only,

t h e

two

spec%- i f i c a t 5 o n s a r e

not

Sully

c o m p l e ~ e ~ t w y , Thus it mlght be i n z p o s s f b l e , to p r e p a r e a

putty zzeording to the manufacturerrs

d i r e c t f

ons

which would g i v a a sucj_table l i n e /

sand mix.

c.5

Fitting and Popping

C

-5.

a

ASTE

No

requirement.

C,S.b

BSS

No

requirement

.

C.5.c

CSA

No

r

equw

emen?,

G,S.d

NIX Prepare

a

p u t t y according t o

the

rnanflacturer t s

d i r e c t i o n s

having. when

t e s t e d w i W

a+modifiad

V Z c a t apparatus, a p e n e t r a t i o n

of

2 0

-

5

mm.

If

t h e p u t t y p r e p a r e d i s t o o

thick

add more

w a t e r ,

If

t o o

thin,

ppepars

a

new

b a t c h ,

Excepe f o r t h a k f r o m p u l v e r i z e d l i m e , screened p u t t y should b e passed k k a u g h a

No.

20

screen and

l e t

caol

below 8 0 " ~ ~

M5x

a weight of

this

pw-tty such t h a t

it

contains

75

gm. of d r y quickiime (100 gm. d r y hydrate) w i t h 30 gm, o f gazging p l a s t e r adding more w a t e r

as r e q u i r e d t o mainta5n workable consistency.

Make

a

p a t

on

&ass h i t h

thzs

rdx

6

b y

8

jnches by appraximatel~ 1 J P inch t h l c k ,

trowel

s m o o t h , and 1st stand o v e r n i g h k Ylace t h e p a t

im

a s t e a m

bath, raise w a t e r t o

6oEkfng

t e m p e r a t w e , boil f o ~

5

h o u r s and then rerncve, The p a t

shall

be free from pops aF p i t s .

NOTE: E n s u r e somdness of gauging p l a s t e r

by

t e s t i n g as ~ ~ O Tb u t Q vdthout lime.

~ , 6 , b

BSS

No

requirement under

" ~ l a s t i c i t y "

Ss

given, Vnder tqb~.;rorkabflity!' however t h e f o l l o w i n g t e s t I s given

( f o r C l a s s A q d c k l i m e

o n l y ) :

Siff

the

qtzicklime

an

a

B.S-

No,

7

sieve, crush

r e s l d u a sc as

to

produce t h e

rntnimum o f

fines and r s s f f t

~ m f i i

the whole has passed

through,

If

the vendor spezlT5ea t h e

slaking

t emperatwe, ad just 20

to

40

l i t r e s of

w a t e r to

within

2 ' ~ . of

the

specffled t e r n p e p a t w e and add

5

k i l o g r a m s

of

t h e qazi:.klihe in small quantities t a k i n g n o t less than

f i v e minutes

for

the a d d i t i o n . Ewfng the additLon and for a k o t a l

of 1

h o w keep the

mass

at w i t h i n about 2'C, of the s p e c i f i e d t e m p e r a t u r e by h e a t i n g

or adding w a t e r a s required and stirring vigorously. L e t stand f o r the balance

o f

24 hours 2nd let c o o l

to

r o o m t e m p e r a t m e .

If

t h e vendor d o e s

not

specPfy a shaking

temperatuze, slake t w o batches

of

qpcltlirne of

5

k l l o g r m s each

at

40°c,

and

100°Cr.

-

Z°C.

but

otherwise proceed

as

described

above.

Adjust t h e p u t t y

(or

putties) o b t a i n e d

t a

a

consistency

such

t h a t a spread o f

11

cm,

s h a l l

result

a f t e r one bump

on

t h e standmd f l o w t a b l e , The adjustment

shall

consist of a d d i t i o n of water

if

t h e putty is t o o d r y and removal of w a t e r by

standing o n a clean p o r o u s p l a t e

if

it

is t o e w e t ,

It

shall

t h e n

t a k e

not

more t h a n

13

bumps to effect a spread of

19

crn,

on a

t e s t

sample.

e . 6 . c

CSA

?To

r

equirement-,

c . 6 , d

NLLA

A

pu-i;t-y p r e p a r e d according

to

the method

o f

t3e mannfackmer and, gxcept

f o r p u l v e r i z e d

q u 5 - c k l i m e ,

a f t e r passing a

No,

20 s i e v e s h a l l have a

p l a s t i c Z t y of

not

less

than

200

when

t e s t e d

in

the

Emley

plastizimet e @ ,

C 0 7

Residue

ASTM Crush a representativs 2&-kg,(5-lb) scvple of quicklime

tc

p a s s a

1-inch

ring

and b e r e t a i n e d

an

a

1/4-lnnh screen,

T e s t pulverized k5me as recei~reldt. S l a k e

at

70

to

8Q°F.

so as

to

produce t h e

maximum

q u a n t i t y

o f putty.

L e t stand

for

1

hour and w a s h t h r o u g h a

No,

20 s i e v e w i t h a

stream

o f

w a t e r o f moderate pyesswe.

Do not

rub

m a t e r i a l

t h o w h the s f a v e , Wash till only c o a r s e p w t i c l e s

a r e

r e t a i n e d

on t h e s i e v e

but f o r not

more

than

30

minutes,

Dry

res9due

at

212 to

225"F,

T h e r e s l d n e s h a l l b e

not

m o r e t h a n

15

per cent o f t h e weight of

ths

erigXnal dsy sample.

C.7,b BSS

Class

A qvlcl-clbrne:

S l a k e .tho a

p u t t y

zs d e s c r i b e d under C.6.b. T w e n t y -

f o u r

h a m s

a f t e r s t a r t of slaking

o p e r a t i o n

pass

supernatant liquid t h r o u g h B.S. No.

I8

sieve and

then

tPlroxgh a No. 5 2 , then

s t i r

t h e remainder and pzss

it

t';lrouglz,

t h e

w h l e b e i n g passed

i n t o a

reqtangular f i l t e ~ c l o t h , c a r e b e i n g

taken

to pass

t h e whole slaked mass. Wash residue

an

b o t h s i e ~ e s w i t h a m o d e r a t e + w a t e r s t r e a m b u t do not rub. _Dry residue at 100 , I O Q G , There shall b e

not

more

thazz

5

p e r cent ( o n weight

o f

quicklLme used) on No,

L8

s l e v e and not

more

t h a n 2 per cent

on

t h e No,

52

s i e v e ,

F o l d ends of f i l t e r cloth t o g e t h e r and l e t

the

puthy d r a i n ,

Sift, crush,

and slake quicklime as described under

c.b.6

except

t h a t b o i l 5 l z g

water is

to b e used

f o r

slakirag and a wePght of

I

I r i l o ~ z l a m is used in p l a c e of'

5

k f l o g r m s . Xsep w a t e r boiling

for

1 h o u r from

start of slaking,

Then

screen t h r o u g h

Be.

le and

No, 52

sieves as described above f o r Class

A

qujck- lTme,but discard the residue o n No, 5 2 sieve. ? h e r e s h a l l be n o t more t h a n

5

per cent r e t a i n e d on t h e No.

1 8

sieve, Recovey l i m e p u t t y

a s

descrbbed rmder Class A a3ove.

C.7.c C S A No ~ e q u i r s r n e n t .

C.7.d

Y M

Qufcklirne s h a l l b e t e s t e d as described under

L 7 . a

with

t h e following changes:

(I)

Pebble-lime s h a l l

be

tested "as r e c e i v e d " and

not

broken dorm;

( 2 ) Soft lumps and agglomerates may b e b r ~ k e n -as

w i t h the fingers, g e n t l e Srushing o r sir;rilw means,

'4aerz t e s t e d a s above, t h e q u i c k l h e s h a l l show not m o r e ellan

3%

resridue.

~ . 8

Fineness

G ,

8,

a ASTM

$To

requirement.

G.8.b

BSS No requirement.

e.8.c

GSA No raquirement

.

c.8.d

mA

Proceed as d e s c ~ i b e d under C.7.a. Then pass t h e m a t e r i a l ~.-~11ich passed tlwaugh a ??om 20 sfeve

t h r o u g l ~ a No, 50 s t e v e . mot more than

0.5s

s h a l l be rs+aIned

o n

the No,

50

s z e v e .

C,q,b BSS

l?o

r

equir

=men?

.,

C.10

Volume

Yield

c

a 10.

a

ASTM

No

requL-rerne~t;,

C,LO.b

BSS Class A qut5eklime

only.

P r e p a r e

lime

p u t t y

as

d e s c r i b e d

under C.6.b.

A d j u s t so as

to

produce a s l m p of 1 1 2

inch

t

1/16

l l ~ c b

in

t h e southard

visaosFmeter

by adding w a t e r o r standfng

on

c i e z n porous p l a t e an5 t h e n

"Imoclcing-up"

in

a

p u g m i l l . FFnd

weight

of 1:no-m

v o l m e of

p u t t y in duplicate. Use the higher

of

t h e figures obteilied.

If

d = d e n s i t y of l i m e pu-tty f o m d then

V o l u m e

=

0.70/(d

-

1)-

If

no slaking temperature is s p e c i f i e d by t h e rrenclor

then

t h e t w o putties p r e p a r e d at

50°C.

and 100°C.

( s e e C.5.b) shall be t e s t e d

for

" V o l m e Yield" =d

t h e p u t t y g i v i n g

t h e

higher v a l u e

shall

be used f a r determina-iion of

the

" ~ e s i d u e " and the " ~ o r k a b i l i t y "

(for

latter

s e e

under

C.6.b)

as

well

as

f o r

" V o l m e Yield", C , l O . c CSA ?To requirement

.

C,lO.d

NZh ?To requirement, 1 Hydraulic Strength

C

.

I1

.

&

ASTM

No

r

equiremer;t.

C.1l.b BSS

If the

vendor s p e c i f i e s a slaking p e ~ i o d

sift,

crush, and

slake

t h e quicklime as described

under

C.7.b

Class B, except that t h e w a t e r s'lould

boil

for %he

vend07 f s

~ l d i i w

p e r i o d ( n o t t o exceed 2

~ O I Z T B )

If

2h.e

vendor

d o e s

n o t

s p e c i f y a slalrjng p e r i o d then sift, crush, and s l a k e as d e s c r i b e d under C.7.h Class 13. D i s c a r d residues and r e c o v e r t h e

lime

put5g

as

d e s w i b d

under

C.7.b

Class

A,

~ d j u s t 1ine p u k t y t o

w a t e r content

of

65%

5

I$

C.ll,b ( c o n t t d )

renroTe

o n

c l e a n

porous

p l a t e and "lmoek-up" as r

equir

ea.

1-Tix

together

some of

the

p u t t y and a weight of

sta~dard

sand equal t o t h e e tilnes t h e

weight.

of

dry I ~ y d r a t e

Ln

t h e p-t~tty, P r e p a r e

6

specimens

each

1 inch

s q u a r e

by

4

inches

long

in

bronze

mou;ds.

Cure

specimens

Zn

t h e

moulds

f o r

28

days

21;'~

5

1°Ca

and

at

l e a s t

905 R.H. Remove f r o m m o u l d

and

immerse

in

w a t e r for 1J2 hour, Then

support specimens

an

l/2-inzh diameter r o l l e x l s

3

inches a p a r t , and a p p l ~ a l o a d an a t h i r d 1 / 2 -

inch

dEameter bearing at t h e

centre,

> ! h l t i p l y average breaking l o a d of the

s i x

specjmens by

11~5

and r e p o A as modulus of rupture, ' A t 2 8 days the

modulus of r u p t w e s h a l l be not less than 500 lb, nor mope than 3010 9b.

C.11.c

CSA No requirement.

C -12 I n s o l u b l e Ma3t

er

C,lZab

BSS

Grind

an

approximately

5

gm,

sample of quj-ckline t o pass a N o , 52

sieve.

Heat

to boiling

w i t h

at

l e a s t 150 m l , of 2N HC1 and

l e t

stand f o r 10

minutes, Wash twice ( w i t h

boilzng soliuq

cwbon-

a t e ) t h r o u g h a tared f i l t e r paper.

F i n a l l y

the

e n t i r e

residue s h a l l b e b r o u g h t on

to

the t a r e 6 f i l t e r paper, washed w i t h w a t e r , 2 N

X 1 ,

and

f i n a l l y w i t h w a t e ~

until

f r e e f r o m c h l o r i d e , D r y the

f i l t e r

paper and residue a t 100°C.

2

LOOG.

T h e

resldue or

i n s o l u b l e

matter

s h a l l b e r e c o r d e d

as

a percentage

of t h e

lime taken, The percentage s h a l l

n o t

exceed

3

p e r

cent,

C,12.c

CSA

No r e q u l r ernen?,

C.12.d

WIj4 No requirement,

D , I Uses

D , l , a ASTM F o r

use

a s

an

addition t o p o r t l a n d

cement,

f o r

s t . u ~ . c o ?

m o r t w ,

and

in

the

scratch and

brown

ESS For c o a r s e s t d f and b u i l d i n g

m g x t a r only.

D , l , c CSA

As

In

ASTM.

D . l , d

KtA

Principally

used

as a c o n s t i t u t e n t

o f

m o r t w

a - ~ d

c o n c r e t e ,

Hay also be

used

in

s t u c c o and

in

base

c o a t

o f p l a s t e r .

D . 2 Scope

P , 2 , a ASTM Covers b o t h Nomnal and Special

IN-

and 5-1 type

of Lime,

D,2,b BSS Covers b o t h non-hydraulic and semi-kjdraulic

tries.

D.2.c CSA Covers N - t y p e

I h e

only.

D.3

Chemical Composition

Kin

.

Max, C02

Max.

C02

M a x , un-

S i l i c a

CaO

Ec Mg0

at

p l a c e E l s e - h y b a t e d -I-

ITon-volatile of

aMtr,

where Oxide A l d n a

B , 3 , a

AZ"r1T Type

-F€

95

5

7

--

--

Type -3

95

5

.

7

8

--

D , 3 . b BSS

(Class

" B " )

70

5

FA

--

1005

Cm&cao)%

D.3.c

C S A ( Type -IT

95

5

7

--

--

only

S

D,3,d XLA T n e - N

95

7

--

--

T y p e -S 95

7

8

--

II.4.b BSS The

l k n e shall

show an expansion

of n o t

g ~ e a t e r

than

10 m. when t e s t e d as described under ~.b.b, T e s t

(Ti).

D-4.d

IhKA I T e i t h e ~ t y p e (11

or

S )

shall

s h o w popping

or

dbs- intes~zt.t.ion Vhen t e s t e d as

described

u n d e r ~.4.d.,

20 gn. of' dry J-ydrate

being

weighed

out.

II.5

P o p p i ~ ~ g and

Pltt-

D.5.a ASTI4

when

b o t h % y p e s a r e t e s t e d a s described m d e ~

A.7.a,

ff'

the residue

on the JJo.

30

sTeve b e m o r e

than

0,s

per cent, t h e lime s h a l l

show

no

pops

or

p i 3 3

when

t e s t e d as d e s c r i b g d under A a 5 , a .

D.5.b

BSS

N;s r.

e

quf F emer?.%

.

D.5.c

C S A N o r m a l t y p e I L m e

shall

c o n T o ~ m to the reqMremerst given mder ASTM above e x c e p t for A & , a read

A.5.c.

~ . 6 , a

ASTM Type-S

Line,

a f t e r

30

minutes

soaking shall

hsve

a o l a s t 2 c l t y

of not

l e s s than 200

when

t e s t e d

i n

the

W a g P l a s t i c b e t e r .

Us

requbemen-t;

fdr

Type -1:.

~ , 6 , d

T T I A A B 5 ~ ; . ASTJ-C B X G ~ P ~ t o b e t e s t e d a f t e r

15 d n u t e s

+ -

s i :!o requirement for Type

-No

L a 7 . a ASTM

When

t e s t g d a s d e s c r i b e d A . 7 . d , The r e s i d u e

CEE

a

FTo, 30 s i e v e s h a l l

not

exceed 0.5 per

cent.

[ S e e Se::.ti~n

D.5.

EL,

G.7.b

BSS

RequZremen? s as given u n d e r A .&.

,

b

.

1;,7,c

CSA N-Type

L2me requirement

sam5 a s ASTK,

G 1 7 &

MLA Requircrnen*~

same

as

those

~ P v e n

w d e ~

A , 7 , d .

c.8.a

ASTW PFepare

a

m o r t a r using hydrated lime ( 5 0 0 grams)

E= l i n e pu4;t;y [

xuih an

amom'c. t h a t

it

contains

SOC grc,

of

d r y h y d r a t e ) , standard sand (1500 g ~ . )

~ ~ 8 . a

(Conttd)

a d d i t i o n of water t o a

flow

of

between

100% and

1155 of

t h e

original

diameter

a f t e r

25 bumps

in

15

seconds,

on

t h e standard

f l o w

t a b l e .

If

the

f l o w

be

too g r e a t

p r e p m e a

neT:!.

b a t c h

of

mortar.

Irmnediately a f t e r t e s t i n g

the f l o w ,

s u b j e c t t h e

m o r t s r to

a s u c t i o n

o f t w o inches

of mercury f o r

60

seconds.

Return

the

r n o r t w to the

standard

flaw

table an3 redetermine the flow,

Calculete the water

re- t e n t i o n f i g u r e as follows:

Water

r e t e n t i o n

value

=

f l o w a f t e r

suction

x 100.

f l o w b e f o r e s u c t i o n Type-N

Kasonls

h y d r a t e d llme shall.

show

a w a t e r ~ e t e n t T o n value of

not

l e s s than

75$

u s i n g d r y h y d r a t e or p u t t y , Tme-8 Pfasonrs lime

shall

shot-;

a

value of

not

l e s s

than

855

u s i x dry hydrate.

~ , 8 . b

BSS No

requirement,

~ ~ 8 - d

IJLA.

A s

in

ASTM.

G.

9

Insoluble

1-Tatt

er

D,g,a

ASTM N o

requirement,

G.9.b

BSS

A

requirement as d e s c r i b e d under

C.12.b

a p p l i e s .

D,9,c

CSA No requirement,

I2,g.d NLA No requirement.

ITOTE:

The

t e n t a t i v e

revision to

this s p e c i f i c a t i o ~ cf March

1951

is here included.

E.1

Uses

E . l , a ASTIT For use

in

p o r t l a n d

cement

concrete as b l e n d , mendmeat, o r a W x t w e ,

for

s t u c c o , nrortax, s c r a t c h and

brown

c o a t s o f p l a s t e ~ and

as

s o l e cement

it

tous m a t e r i a l in concrete.

E.1.b BSS Used f o r p l a s t e r i r ~

finLsh

coat,

for

c a m s e

stuff

and

b u i l d i n g n o r t a r ,

E , l . c

CSA

No s p e c i f i c a t i o n

exists.

E , l , d

ITLA

No specification e - s t s ,

E.2 Scope

X.2,a

ASTM

Covers and defjnes h y d ~ ~ u l i c h ~ d r a t e d

Ilme,

The

QdrauliciGy m a y

h e increased

by

adding pulverized portland cement clinlcer,

or

a pulverjzed pozzalan. Covers

high

calcium

I b e (containing

less

t 2 a g

5,0$

magne sim o f i d e ) and magne s l u m

limes

(

containing

more t h a n S60$ of

rnagnesinv

o x i d e ) ; oxides

in

b o t h

c a s e s t o be e s t h a t e d on the non-volatile p o r t i o n . Two types

o f

lime a r e listed, Class A

and B,

d i f -

f

ering

i n

hydraulic p r o p e r t y and cl~ernLcsl c o ~ g o s i t i o u , E . 2 . b

BSS

Covers hydrated l i m e

of

the s e m i - h y d r a u l i c t y p e ,

E.L

Soundness

E-4.a

ASTM P r e p a r e a p u t t y

f r o m lime

(500

gm,

)

and

w a t e r

( an

amount

prevSously

deternined

by

t r i a l - a n d -

error)

which has a

consLstency

such t h a t

a

pen- e t r a t i o n of

10

man.

i n

30 seconds

is

o b t a i n e d w i t h

a

modified needle.

(This

is

considered $0 be

fnorrnal consistencyf), To form t h e p u t t y make

a

c r a t e r

In

the

Erne, add t h e w a t e r , trowel t h e lime i n t o t h e w a t e r f o r 30 seconds, then knead w i t h rubber-gloved hands

f a r

5

minutes.

mepare two such s a m p l e s

of

p u t t y , p l a c e on glass plates, s t ~ r e for

48

h o u r s , and l e t one stand T o r

5

days Tn t h e a b o f t h e

l a b o r a t o r y ,

w h i l e the other 2s inversed in c l e a r

running

watep f o r

5

days, Apart f r o c ~ shrinkage c r a c k s , %'he p a t s s h a l l

show

no

dzstort

Ton, cracking, or disint e g ~ a t i o n under both

zanditions

o f

t e s t ,

~ , 4 , b

BSS A s d e s c r i b e d under d.4.b.

'E.4.c CSA No

requfrernen*

.

23.4.d

NLA I k requirement

.

E - 5

Pitting

and

Popping

E,S,a

ASTM

No requirement

E . ~ , I J BSS Nc requirement g i v e n under t h l s heading, T e s t (1) under A - 4 . b is, however, a t e s t

f o r

popping 2112

p i t t i f i g a n d e p ~ l i e s in the case of semi-hydraulic

limes.

E , ~ , C CSA No requirement. E.5.d ITLA No requirement,.

E - 6

P l a s t i c i t y

E

.

6 ,

a ASTM ?To requirement

.

~ , 6 , b

BSS A s d e s c r i b e d under A m 6 , b , Class A only.

1 2 . 6 , ~

CSA No

r

e q u b ement.

E.6-d N U Ro requirement,

E.7

Residue

E m

7,a

ASTM IT0 requirement

is

given under "~esidue". Under

" ~ i n e n e s s " 'is given a methad as described under

A . ? , a , except t h a t the washlng t h r o u g h the sleves

shall.

be z a r r i e d out f n

less

than

15 minutes,

E.7.b BSS As described

under

A.7.b. E . T m c CSA >To requirement

.

E.7.d NLA

No

requirement.

E.8 Water R e t e n t i v i m t y

E-8.a

ASTM No requTrernent, E,8,b BSS

No

requ9r ement

.

E,8,c GSA No

requirement.

~ ~ 0 . d

N U

NO

requirement.

E.9 Insoluble matter

E , g , a

ASTM

No requirement,

E , 9 , b BSS S e d - h y d r a u l i c hydrated lime s h a l l

have

not more than

2$

of

insoluble m a t t e r

when

t e s t e d as

d e s c r i b e d under A , 9 , b .

E m 9 , c

CSA

NO

requirement.

E,9,a

N U

No

requirement.

0 T i m e o f S e t t i n g

E.1O.a

ASTM Putties ( C l a s s A ) o f nomial consistency ( p e n e t r a - t i o n o r 10 mr-, w i t h m d i f i e d

Vicat

needle; s e a

~ ~ 4 . a )

shall have

an i n i t i a l s e t o f not l e s s tfi2.n

t w o h o u r s and

a

f i n a l

s e t o f not mope than

48

bows as determined by the G i l l m o r e needle.

Samples s:-~ould be stored at 90$ relative hm-;ldity

or more d u r i n g t h e test,

E m

10. c

C

S A No

r

e q u l r ement

.

E,lO,d

NL4 No requirement. E,11

Compressive

S t r e n g t h

X.1l.a

ASTM

Using

s t a n d s r d

Ottawa

sand (1500 gm.), hydrated

lime

(500 gm.) and w a t e r

( a s

r e q u i r e d ) p r e p a r e a

m o r t a r

giving a f l o w of between 100

and

al3$

a f t e r

25

bumps in

15

seconds

on the

s t a n d m d f l o w t a b l e .

E,1L.a (Cont

rd.)

c l o s e t

at 905

(or

more] r e l a t i v e

h u n i d i t y f o r

48

t o 52 hours.

Remove and

p l z c e

in

the

l a b o r a t o r y

aLr f o r

5

days. A f t e r

7

days

from

p r e p a r a t i o n place at

l e a s t

t h r e e cubes

in

r=fng

w a L e r

for

t h e

renainder

of

28

days.

Determine

the

con- pressive s t r e n g t h

o f

t h e cubes and express as pounds per s q u a r e

inch

o r crass-ssctional a r e a .

For

c l a s s A Limes: Average compressive s t r e n g t h of

3

o r -more cubes a f t e r 7 d a ~ s shall b e not less

t h a a

175

p . s , i o Average of

3*

o r

more

cubes

a f t e r

28

days

shall

b e not less than

350

p.s.i.

(revision?;

t h a n the 7 day

f i g u r e {existing

s p e c , ) ,

For Class I3 Limes: Average compressive s t r e n g t h of'

3

or m p r e cubes a f t e r 28 days

shall

be n o t less thm

175

( ~ e v k s i o n ) ~

If

t h e lime fails to pass the

7-day

test, then rejection may (if d e s i r e d ) be suspended

until it

i s determined

if

t h e

lime

passes

the

28-day t e s t .

1

BSS

No

requirement,

E,

11. c CSA

No

requirement

,

E

1

Hydraulic

~ k ~ e n g t h

9.12. a

ASTM No requirement

.

2.12.b BSS

As

g i v e n under

C.LO,b.

E,12.c

C S A

Yo

requerement.