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SECTION 344 <br /> LOCAL AGENCY PROGRAM CONCRETE <br /> 344-1 Description. <br /> 344-1 General: Construct Local Agency Program (LAP) Concrete based on the type of <br /> work as described in the Contract and the Concrete Work Categories as defined below. <br /> 344-1.2 Work Categories: Construction of LAP concrete elements will fall into one of <br /> the following Concrete Work Categories: <br /> 344-1.2.1 Concrete Work Category 1: Includes the construction of sidewalks, <br /> curb and gutter, ditch and slope pavement, or other non-reinforced cast-in- place or precast <br /> elements. <br /> 344-1.2.2 Concrete Work Category 2: Includes the construction of precast <br /> concrete including concrete barriers, traffic railing barriers, parapets, sound barriers, inlets, <br /> manholes, junction boxes, pipe culverts, storm sewers, box culverts, prestressed concrete <br /> poles, concrete bases for light poles, highway sign foundations, retaining wall systems, traffic <br /> separators or other structural precast elements. <br /> 344-1.2.3 Concrete Work Category 3: Includes the work associated with the <br /> placement and/or construction of structural cast-in-place concrete requiring a class of <br /> concrete specified in FDOT Section 346. <br /> 344-2 Materials. <br /> 344-2.1 General: Use concrete composed of a mixture of Portland cement, <br /> aggregates, and water, with or without chemical or mineral admixtures that meet the following <br /> requirements: <br /> 344-2.1.1 Portland Cement: Cement shall conform to the requirements of the <br /> AASHTO or ASTM designations. Different brands of cement, cement of the same brand from <br /> different facilities or different types of cement shall be stored separately and shall not be <br /> mixed. Portland cements meeting the requirements of AASHTO M-85 or ASTM C-150 are <br /> allowed for LAP concrete. <br /> 344-2.1.2 Coarse and Fine Aggregates: Aggregates shall meet current FDOT <br /> requirements except that source approval by the FDOT is not required. <br /> 344-2.1.3 Water: Water shall meet current FDOT requirements. <br /> 344-2.1.4 Chemical Admixtures: Chemical admixtures shall meet current <br /> FDOT requirements. Admixtures may be added at the dosage rates recommended by the <br /> manufacturer. <br /> 344-2.1.5 Pozzolans and Slag: Pozzolans and Slag shall meet the current <br /> FDOT requirements. <br /> 344-2.2 Material Storage: Use a concrete production facility that meets the following <br /> requirements. <br /> 344-2.2.1 Cementitious Materials Storage: Provide a separate and clearly <br /> labeled weatherproof facility to store each brand or type of cementitious material without <br /> mixing or contamination. Provide a suitable, safe and convenient means of collecting <br /> cementitious material samples at each storage facility. <br /> 344-2.2.2 Aggregate Storage: Provide suitable bins, stockpiles or silos to store <br /> and identify aggregates without mixing, segregating or contaminating different grades or types <br /> of materials. Identify aggregate type/gradation. Handle the aggregates in a manner to <br /> 01025-36 Technical Specifications <br /> FAPublic Works\ENGINEERING DIVISION PROJECTS\0845B-Old Dixie Hwy Sidewalk(38th Ln-45th St)\Admim\bid <br /> documents\Master Contract Documents\Technical Specifications.doc <br />