(a) Cement. Tests shall be made on the entire cement requirements on car samples or bin (sealed) samples.
Sampling and the number of tests shall be performed in compliance with A.S.T.M. specifications, Serial Designation C183. The following outlined tests shall be performed in compliance with the A.S.T.M. specifications serial designation listed.
Test | A.S.T.M. Serial Designation |
Fineness |
C115 |
Autoclave Expansion |
C151 |
Time of Setting |
C191 |
Compression Strength |
C109 |
Tensile Strength |
C190 |
Air Content |
C185 |
Chemical analysis tests shall not be required unless specifically designated.
(b) Sand. Standard tests shall be made in advance of concreting per A.S.T.M. C33 and A.S.T.M. C40 on each fine aggregate proposed to be used. Other tests being satisfactory, the aggregate may be used pending results of thirty-eight day mortar strength tests. Tests shall also be made as the work progresses on each 1,000 cubic yards of fine aggregate for concrete to assure uniformity.
(c) Gravel and Stone. Standard tests shall be made in advance of concreting on each grading of each course aggregate proposed to be used, per A.S.T.M. C33-46, P. 7, 8, 9, 10, 11 and 12. However, the requirements of P. 11 may be omitted for gravel and crushed stone if evidence is furnished showing that the material has been subjected for a period of at least five years to essentially the same conditions of service and exposure as the structure in which the material is to be used. Tests shall also be made as the work progresses on each 1,000 cubic yards of coarse aggregate for concrete to assure uniformity.
(d) Concrete. Advance tests of the concrete shall be made in accordance with A.S.T.M. C31. Four standard six-inch compression cylinders, two to be tested at seven days and two at twenty-eight days, per A.S.T.M. C39, shall be made with the proportioning and materials proposed to be used in the major part of the project. The slump should not be less than the greatest slump expected to be used in the structure. The tests made on the aggregates (subsection (c) hereof) may be made a part of these tests if suitably referenced on the reports which shall be issued at seven to twenty-eight days. These tests shall be repeated, if necessary, because of changes in materials or unsatisfactory results.
During the progress of the work, and for each different mix of concrete, a set of two standard six-inch concrete cylinders shall be made and tested, where from twenty-five to 100 yards of concrete are placed during each and every day’s operation. An additional set of cylinders shall be made for each 100 cubic yards or major fraction thereof over and above the first 100 cubic yards. The cylinders of each set shall be molded from the same sample of concrete and tested at seven days, or at least twenty-eight days, as may be specially designed. Sampling of concrete for test purposes shall be per A.S.T.M. C172. Making and curing of test cylinders shall be per A.S.T.M. C31. Testing of specimens shall be per A.S.T.M. C39.
Where twenty-five or more cubic yards of concrete are placed, and as necessary to maintain desired consistency of the concrete, a slump test shall be made per A.S.T.M. C143. Not less than one such test shall be made for each fifty cubic yards of concrete placed at one operation. Such test shall also be made on each sample of concrete used in fabricating test specimens.
(e) Brick for Manholes, Catch Basins and Valve Basins. Where fifty M or under are required, visual inspection at the site shall be made to determine conformance with A.S.T.M. C32.
Where more than fifty M are required, tests shall be made by an independent laboratory. Sampling and testing shall be made as per A.S.T.M. C67 to determine conformance with A.S.T.M. C32.
(f) Brick (Building). Tests shall be made by an independent laboratory for each fifty M delivered, including the first sampling and testing per A.S.T.M. C67 for conformance with brick specified per A.S.T.M. C62.
(g) Concrete Block for Manholes, Catch Basins and Valve Basins. Where ten M or under are required, visual inspection at the site shall be made to determine conformance with A.S.T.M. C139.
Where more than ten M are required, tests by an independent laboratory shall be made. Sampling and testing shall be made per A.S.T.M. C140 to determine conformance with A.S.T.M. C139.
(h) Building Stone. Visual inspection on the site shall be made. Tests by an independent laboratory per A.S.T.M. C97, C99, C100 and C170 shall be made when specified in the project specifications.
(i) Vitrified Sewer Pipe. Where the total quantity required on the contract, including all pipe sizes, is less than 1,000 feet, visual inspection at the site to determine conformance with A.S.T.M. C13 and C200 shall be made.
Where the total quantity required on the contract, including all pipe sizes, is more than 1,000 feet, tests by an independent laboratory per A.S.T.M. C13 and C200 shall be made.
(j) Concrete Sewer Pipe. Where the total quantity required on the contract, including all pipe sizes, is less than 1,000 feet, visual inspection at the site shall be made to determine conformance with A.S.T.M. C14.
Where the total quantity required on the contract, including all pipe sizes, is more than 1,000 feet, tests by an independent laboratory per A.S.T.M. C14 shall be made.
(k) Reinforced Concrete Sewer and Culvert Pipe. Where the total quantity required on the contract, including all pipe sizes, is less than 1,000 feet, visual inspection at the site shall be made to determine conformance with A.S.T.M. C75, C76 and the general specifications for such pipe, included herewith.
Where the total quantity required on the contract, including all pipe sizes, is more than 1,000 feet, tests by an independent laboratory shall be made to determine conformance with A.S.T.M. C75 and C76 and the general specifications for such pipe, included herewith.
(l) Reinforced Concrete Sewer and Culvert Pipe Made on Site. All tests shall be made by an independent laboratory to determine conformance with A.S.T.M. C75, C76 and the general specifications for such pipe, included herewith.
Standard six-inch test cylinders shall be made as previously specified under subsection (d) hereof, modified as follows: a minimum of two test cylinders shall be made for each so-called “run” of pipe made, regardless of concrete yardage involved.
(m) Reinforcing. Inspection and tests shall be made by an independent laboratory to determine conformance with the specifications.
(n) Structural Steel and Miscellaneous Steel and Metal. Where less than fifty tons are required, field inspection for rust, dimensions, riveting, welding, painting, etc., shall be made.
Where more than fifty tons are required, certified copies of mill tests on steel used in fabrication and shop inspection by an independent laboratory shall be given to show conformance with A.S.T.M. A7, as revised, and with the general specifications for structural steel and miscellaneous metal work.
(o) Cast-Iron Pipe and Fittings. If less than 200 tons are required on the contract, each piece of pipe shall bear the manufacturer’s serial number and shall be certified by the manufacturer to have met the requirements of the government standard specifications. Also, each pipe shall be visually inspected in the field for specification conformance.
Inspection and laboratory tests at the source shall be made by an independent testing laboratory to determine conformance with the general specifications for cast-iron pipe and fittings and inside piping, including herewith, if more than 200 tons are required.
(p) Roofing. A manufacturer’s certificate of inspection and guarantee shall be furnished as set forth in the general specifications for insulation and roofing.
(q) Prestressed Concrete Cylinder Pipe. Cement, sand, gravel, stone and concrete shall be tested as specified in subsections (a), (b), (c), and (d) hereof. Tests by an independent testing laboratory shall be made on cylinder steel, and bar and wire reinforcing.
(r) Noncylinder Prestressed Concrete Pipe. Cement, sand, gravel, stone and concrete shall be tested as specified in subsections (a), (b), (c), and (d) hereof. Tests by an independent testing laboratory shall be made on bar and wire reinforcing.
(s) Equipment. Equipment shall be tested as called for in the project specifications. (Ord. 352. Passed 10-22-62.)