204-224-1565

limestone

Technical Information

Chabot’s standard inventory of construction materials conform to City of Winnipeg and Manitoba Infrastructure and Transportation specifications.

Our sands, bases and limestone products with meet both COW and MIT specs: Screen Sand, Backfill, A Base, C Base, Traffic A, Traffic C, ¾” Down limestone, 2” Down limestone, 4” Down limestone, 6” Down limestone.

Specifications

Material sieve specifications are as follows:

City of Winnipeg Spec% Dry Wt. passing
Canadian Metric
Sieve Size
GranularCrushed Limestone
25000 100%  
20000 80-100% 100%
5000 40-70% 40-70%
2500 25-55% 25-60%
315 13-30% 8-25%
80 5-15% 6-17%

 

City of Winnipeg Spec% Dry Wt. passing
Canadian Metric
Sieve Size
50mm MAX100mm MAX
200000    
150000    
100000   97-100%
50000 100%  
25000   30-50%
5000 25-60%  
80 4-15% 8% max

 

Granular Base Course
Passing Standard SievesClass "A"Class "B"Class "C"
 GravelLimestoneGravel or LimestoneGravelLimestone
37.5 mm sieve       100%  
25 mm sieve       85-100% 100%
19 mm sieve 100% 100% 100%    
16 mm sieve 80-100%        
4.75 mm sieve 40-70% 35-70% 30-75% 25-80% 25-80%
2 mm sieve 25-55%   25-65%    
425 um sieve 13-30% 10-30% 15-35% 15-40%  
75 um sieve 8-15% 8-17% 8-18% 8-18% 8-20%
Minimum Crush Count Maximum

a) Los Angeles Abrasion Loss
b) Shale Content
c) Clay Balls
35%

35%
12%
10%
100%

35%
25%

35%
12%
10%
15%

40%
20%
100%

40%

 

Traffic Gravel
Passing Standard SievesClass "A"Class "B"Class "C"Class "D"
 GravelQuarried LimestoneGravelGravelQuarried LimestoneQuarried Rock
25 mm sieve     100% 100% 100%  
19 mm sieve 100% 100%     85-100%  
16 mm sieve           100%
12.5 mm sieve 75-90%   70-90% 60-95%    
4.75 mm sieve 45-70% 35-60% 40-70% 30-70% 35-60% 30-60%
425 um sieve 10-35%   10-35% 5-35%    
75 um sieve 8-15% 6-17% 0-15% 0-15 0-17% 0-10%
Minimum Crush Count Maximum

a) Los Angeles Abrasion Loss
b) Shale Content
35%

45%
12%
10%
100%

45%
35%

45%
12%
10%
25%

45%
15%
100%

45%
100%

 

Prevention of Contamination, Segregation and Degradation

Natural aggregates are extracted from larger rock formations through an open excavation (Pit). Extracted rock is reduced to usable sizes by mechanical crushing. The handling and storage of aggregates are organized in such manner as to minimize any contamination, segregation or degradation. This is accomplished by stockpiling material in lifts with a loader instead of creating a pile with use of a conveyor. Aggregates are stored on clean hard bases that permit free drainage. Care is taken so that cross contamination between different sized materials does not take place. Potential contamination from overhanging trees or passing vehicles is eliminated, especially when the material is stored for extended periods.

Sampling and Testing Requirements

During production and stockpiling of granular materials, samples shall be taken on regular intervals monitor and control the consistency of aggregate products.

Test Results and Reporting

All test results are documented using an L Chabot Enterprises Ltd. standardized form on company letterhead, and are kept on a project specific file. All test result findings are communicated to production crews, reported to the office and filed accordingly.

Certificate of Conformance

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PHONE: (204) 224-1565
FAX: (204) 222-4754
EMAIL: INFO@CHABOTENTERPRISES.CA

HEAD OFFICE
BOX 17, GROUP 545, R.R.#5
WINNIPEG, MB R2C 2Z2