505 E Central Ave #B - DEF 1 - Plan

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CITY OF SANTA ANA SPECIFICATIONS PROJECT NO.: XX-XXXX PROJECT TITLE 39 The asphalt concrete surfacing and underlying base materials shall be pulverized such that 100 percent of the material will pass a two-inch sieve and a minimum of 90-percent will pass a one and one-half-inch sieve. All materials other than rock and pulverized asphalt concrete shall be broken up such that these materials will pass a one inch sieve. The pulverized material shall be shaped and rolled to the specified cross sections. The Engineer shall check and verify the conformance of the material to the lines, grade, and elevation as shown on the plans, prior to beginning cement treatment. Trimming and disposal of excess material, if required, will be performed on the intimate mixture of pulverized asphalt concrete, base materials and subgrade soil prior to cement treatment. Portland cement shall be Type II Modified, conforming to the requirements of Section 201-1.2.1 "Portland Cement,” of the Standard Specifications. Pozzolanic material shall not be substituted for Portland Cement. Water shall conform to the provisions in Section 201-1.2.3, "Water,” of the Standard Specifications. Cement Application Cement shall be uniformly spread by mechanical equipment at a spread rate necessary to meet the cement content specified on the plans for the various areas to be treated. The cement content shall be 5% (five-percent) based on the dry unit weight of the pulverized material. The dry unit weight of the pulverized material shall be determined by California Test 312 (Design and Testing of Classes A and B Cement Treated bases). The Engineer may order an increase or decrease in the specified cement content when conditions warrant such action. For cost estimate purposes, use 130 pounds/cubic feet for the dry unit weight of pulverized material. The quantity of Portland cement added to the pulverized material for cement treatment shall meet the following requirements when evaluated in conformance with the provisions in Section 400-1.4, Statistical Testing, of the Standard Specifications. 1. The average of the test results for the cement content from each sampling station shall vary no more than 0.6-percent under not more than 1.0-percent over the specified cement content. 2. The moving average of the test results shall be at least the specified cement content. Cement shall not be spread upon the prepared material more than one hour prior to the mixing operation. No traffic other than the mixing equipment shall be allowed to pass over the spread cement until the mixing operation is completed. 505 E Central Ave #B11/6/2024