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Section 1905 Concrete Quality, Mixing and Placing
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Concrete shall be proportioned to provide an average compressive strength as prescribed in Section 1905.3 and shall satisfy the durability criteria of Section 1904. Concrete shall be produced to minimize the frequency of strengths below f 'c as prescribed in Section 1905.6.3. For concrete designed and constructed in accordance with this chapter, f 'c shall not be less than 2,500 psi (17.22 MPa). No maximum specified compressive strength shall apply unless restricted by a specific provision of this code or ACI 318.
1905.2 Selection of Concrete Proportions
1905.3 Proportioning on the Basis of Field Experience and/or Trial Mixtures
1905.4 Proportioning Without Field Experience or Trial Mixtures
1905.5 Average Strength Reduction
1905.6 Evaluation and Acceptance of Concrete
1905.6.1 Qualified Technicians
Concrete shall be tested in accordance with the requirements in Sections 1905.6.2 through 1905.6.5. Qualified field testing technicians shall perform tests on fresh concrete at the job site, prepare specimens required for curing under field conditions, prepare specimens required for testing in the laboratory and record the temperature of the fresh concrete when preparing specimens for strength tests. Qualified laboratory technicians shall perform all required laboratory tests.
1905.6.2 Frequency of Testing
The frequency of conducting strength tests of concrete and the minimum number of tests shall be as specified in ACI 318, Section 5.6.2.
1905.6.3 Strength Test Specimens
1905.6.4 Field-Cured Specimens
1905.6.5 Low-Strength Test Results
1905.7 Preparation of Equipment and Place of Deposit
1905.12 Cold Weather Requirements
Related Code Sections
Section 1905 Concrete, Concrete Quality, Mixing and Placing
The required strength and durability of concrete shall be determined by compliance with the proportioning, testing, mixing and placing provisions ...
1905.12 Concrete, Cold Weather Requirements
Concrete to be placed during freezing or near-freezing weather shall comply with the requirements of ACI 318, Section 5.12 ...
1905.13 Concrete, Hot Weather Requirements
Concrete to be placed during hot weather shall comply with the requirements of ACI 318, Section 5.13 ...
1905.2 Concrete, Selection of Concrete Proportions
Concrete proportions shall be determined in accordance with the provisions of ACI 318, Section 5.2 ...
1905.3 Concrete, Proportioning on the Basis of Field Experience and/or Trial Mixtures
Concrete proportioning determined on the basis of field experience and/or trial mixtures shall be done in accordance with ACI 318, Section 5.3 ...