Colto Material Spesification
Colto Material Spesification
Colto Material Spesification
GRADING *see reverse *see reverse *see reverse *see reverse *see reverse - - - -
GRADING
- - - - 2.5 = GM = 1.5 2.6 = GM = 1.2 2.7 = GM = 0.75 2.7 = GM = 0.75 2.7 = GM = 0.75
MODULUS
PI shall not exceed PI shall not exceed
a)All materials a)All materials 12 or a value equal 12 or a value equal
PI shall not exceed PI shall not exceed
except calcrete except calcrete to 2 times the GM to 3 times the GM
LL = 25 LL = 25 12 or a value equal 12 or a value equal
LL = 25 LL = 25 LL = 30 plus 10, whichever is plus 10, whichever is
PI = 5 PI = 6 to 3 times the GM to 3 times the GM
PI = 6 PI = 6 PI = 10 higher. LS shall not higher. LS shall not
LS = 2% LS = 3% plus 10, whichever is plus 10, whichever is
ATTERBERG LS =3% LS = 3% LS = 5% exceed 5%. In the exceed 5%. In the
In addition the In addition the higher. LS shall not higher. LS shall not
LIMITS (-0,425mm In the case of b)Calcrete b)Calcrete case of calcrete the case of calcrete the
arithmetic mean of thearithmetic mean of the exceed 5%. In the exceed 5%. In the
FRACTION) calcrete the PI = 8. LL = 25 LL = 30 PI shall not exceed PI shall not exceed
PI's for a lot (min 6 PI's for a lot (min 6 case of calcrete the case of calcrete the
(% passing 0,425mm PI = 8 PI = 6 15 provided the LS 17 provided the LS
tests) shall not tests) shall not PI shall not exceed PI shall not exceed
sieve) LS = 170 (% passing (% passing does not exceed 6% does not exceed 7%
exceed 4 exceed 4,5 17 provided the LS 17 provided the LS
0,425mm sieve) LS 0,425mm sieve) LS and (% passing and (% passing
does not exceed 7% does not exceed 7%
= 170 = 320 0.425mm sieve) LS 0.425mm sieve) LS
= 320 = 320
If chemical
The PI shall not exceed 12. If the PI
modication is
ATTERBERG exceeds 12 the material shall be chemically
required, the PI of
LIMITS (-0,075mm modied. After chemical modication the PI of - - - - - -
the 0,075mm fraction
FRACTION) the minus 0.075mm fraction shall not exceed
after modication shall
8
not exceed 10
Mudrock shall have Mudrock shall have Mudrock shall have Mudrock shall have Mudrock shall have
The material shall
a wet 10% FACT a wet 10% FACT a wet 10% FACT a wet 10% FACT a wet 10% FACT
The material shall comply with the requirements in xolumns 3, 4 comply with the
DURABILITY value of not less than value of not less than value of not less than value of not less than value of not less than
and 5 or table 3602/2 (COLTO) requirement in table
90kN, and wet/dry 80kN, and wet/dry 60kN, and wet/dry 60kN, and wet/dry 60kN, and wet/dry
3402/3 (COLTO)
Venter test clas I of II. Venter test clas I of II. Venter test clas I of II. Venter test clas I of II. Venter test clas I of II.
SOLUBLE SALTS See additional requirements (COLTO) The material shall comply with the rquiremnts in clause 3602 (COLTO)
CBR @ 98% of CBR @ 95% of CBR @ 95% of CBR @ 93% of CBR @ 93% of CBR @ 93% of
modied AASHTO modied AASHTO modied AASHTO modied AASHTO modied AASHTO modied AASHTO
STRENGTH (CBR) - - -
density shall not be density shall not be density shall not be density shall not be density shall not be density shall not be
less than 80% less than 45% less than 25% less than 15% less than 10% less than 7%
Swell at 100%
modied AASHTO
density shall not Swell at 100% Swell at 100% Swell at 100% Swell at 100% Swell at 100%
SWELL exceed 0.2% for all modied AASHTO modied AASHTO modied AASHTO modied AASHTO modied AASHTO
- - -
(MAXIMUM) materials except density shall not density shall not density shall not density shall not density shall not
calcrete for which te exceed 0.5% exceed 1.0% exceed 1.5% exceed 1.5% exceed 1.5%
swell shall not
exceed 0.5%
Minimum of 88% of 98% or 100% of
COMPACTION Minimum of 85% of The density requirements of the layer in which the material is used, shall be applicable. (See subclause 3402 (b)(COLTO)) In
apparent realtive modied AASTHO
REQUIREMENTS bulk relative density restricted areas the in situ dry density of gravel material shall comply with the requirement in the project specications.
density density (As specied)
COARSE SAND
Shall not be less than Shall not be less than Shall not be less than
RATIO (SEE
35% and not exceed 35% and not exceed 35% and not exceed
DEFINITION IN - - - - - -
50% in respect of the 50% in respect of the 50% in respect of the
SUBCLAUSE 3602
target grading target grading target grading
(c)(i)(5))
GRADING OF CRUSHED AND UNCRUSHED STONE (TABLE 3602/1 & 3402/1 )
G1 G2 G3 G4 G5
NOMINAL
APERTURE SIZE OF % PASSING % PASSING % PASSING % PASSING % PASSING
SIEVES (mm)
50.0 95 - 100 -
37.5 100 100 100 100 85 - 100 -
28.0 86 - 95 86 - 95 86 - 95 100 86 - 95 100 - -
20.0 73 - 86 73 - 86 73 - 86 87 - 96 73 - 86 87 - 96 61 - 91 -
14.0 61 - 76 61 - 76 61 - 76 73 - 86 61 - 76 73 - 86 - -
5.0 37 - 54 37 - 54 37 - 54 43 - 61 37 - 54 43 - 61 31 - 66 -
2.0 23 - 40 23 - 40 23 - 40 27 - 45 23 - 40 27 - 45 20 - 50 20 - 70
0.425 11 - 24 11 - 24 11 - 24 13 - 27 11 - 24 13 - 27 10 - 30 -
0.075 4 - 12 4 - 12 4 - 12 5 - 12 4 - 12 5 - 12 5 - 15 -
CRUSHED STONE REQUIREMENTS (TABLE 3602/2 & 3602/3) REQUIREMENTS FOR CHEMICALLY STABILIZED PAVEMENT LAYERS (TABLE 3402/5)
CRITERIA C1 C2 C3 C4
ACV 10% FACT VALUES
ROCK TYPE MATRIX MATERIAL BEFORE TREATMENT Min: G2 Min: G4 Min: G6
WET / DRY
DRY MAX.) DRY (MIN.) WET (MIN.)
(MIN.) ATTERBERG LIMITS AFTER
Max: S.P. Max: S.P. Max: 6% Max: 6%
NON-SILICEOUS TREATMENT
27% 140 kN - 75%
CEMENTING MATERIAL DESIGN STRENGTH
ARENACEOUS ROCKS
SILICEOUS (LAB UCS STRENGTH)
29% 110 kN - 75% (MPa)
CEMENTING MATERIAL
DIAMICTITES Min: 6 Min: 3 Min: 1.5 Min: 0.75
- 21% 200 kN - 70% (a) AT 100% OF MDD
(TILLITES) Max: 12 Max: 6 Max: 3 Max: 1.5
ARGILLACEOUS Min: 4 Min: 2 Min: 1 Min: 0.5
- 24% 180 kN 125 kN - (b) AT 97% OF MDD
ROCKS Max: 6 Max: 4 Max: 2 Max: 1.0
DESIGN STRENGTH
OTHER ROCK TYPES - 29% 110 kN - 75% (LAB ITS STRENGTH AT 100%) - - Min: 250 Min: 200
(KPa)
DURABILITY : ALL CHARACTERISTICS, INCLUDING AMONGST OTHER THE
FINES LOST CARBONATED VALUE WITH REGARD TO DURABILITY, SHALL
WET/DRY COMPLY WITH THE REQUIREMENTS IN THE PROJECT
FREEZE/THAW SPECIFICATIONS.
* Information on this form is a summary of tables from the newest COLTO document. Sieves have been adjusted for the new SANS 3001 test methods.
(PTY) LIMITED - GEOTECHNICAL SERVICES For any additional information refer to the newest COLTO document.