Specifications for Cement Concrete Paving Adopted October 14 1915
Specifications for Cement Concrete Paving Adopted October 14 1915
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Materials.
1. Cement. The cement shall meet the requirements of the Standard Specifications for Portland Cement, adopted by the Ameri- can Society for Testing Materials, August 16, 1909, with all subse- quent amendments and additions thereto adopted by said Society.
2. Fine Aggregate. Fine aggregate shall consist of natural sand or screenings from hard, tough, durable crushed rock or gravel, con- sisting of quartzite grains or other equally hard material graded from fine to coarse, with the coa...rse particles predominating. Fine aggregate, when dry, shall pass a screen having four (4) meshes per linear inch; not more than twenty-five (25) per cent shall pass a sieve having fifty (50) meshes per linear inch, and not more than five (5) per cent shall pass a sieve having one hundred (100) meshes per linear inch. Fine aggregate shall not contain vegetable or other deleterious matter nor more than three per cent of clay or loam.
Fine aggregate shall be of such quality that mortar composed of one (1) part Portland cement and three (3) parts fine aggregate, by weight, when made into briquettes, shall show a tensile strength (at seven (7) and twenty-eight (28) days) at least equal to the strength of briquettes composed of one ( 1 ) part of the same cement and three (3) parts Standard Ottawa sand by weight.
What to read after Specifications for Cement Concrete Paving Adopted October 14 1915?
You can find similar books in the "Read Also" column, or choose other free books by American Society of Municipal Engineers to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Materials.
1. Cement. The cement shall meet the requirements of the Standard Specifications for Portland Cement, adopted by the Ameri- can Society for Testing Materials, August 16, 1909, with all subse- quent amendments and additions thereto adopted by said Society.
2. Fine Aggregate. Fine aggregate shall consist of natural sand or screenings from hard, tough, durable crushed rock or gravel, con- sisting of quartzite grains or other equally hard material graded from fine to coarse, with the coa...rse particles predominating. Fine aggregate, when dry, shall pass a screen having four (4) meshes per linear inch; not more than twenty-five (25) per cent shall pass a sieve having fifty (50) meshes per linear inch, and not more than five (5) per cent shall pass a sieve having one hundred (100) meshes per linear inch. Fine aggregate shall not contain vegetable or other deleterious matter nor more than three per cent of clay or loam.
Fine aggregate shall be of such quality that mortar composed of one (1) part Portland cement and three (3) parts fine aggregate, by weight, when made into briquettes, shall show a tensile strength (at seven (7) and twenty-eight (28) days) at least equal to the strength of briquettes composed of one ( 1 ) part of the same cement and three (3) parts Standard Ottawa sand by weight.
What to read after Specifications for Cement Concrete Paving Adopted October 14 1915?
You can find similar books in the "Read Also" column, or choose other free books by American Society of Municipal Engineers to read onlineMoreLess
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