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First United-CS 8309060 oo ~ I © 0 J J o ~ 0 [] · 0 0 GUIDELINI~S FOR CONCRETE PARKING AREAS PROPOSED FIRST UNITED METHODIST CHURCH - PHASE I HEARTZ ROAD COPPELL, TEXAS REPORT NO. H-3-0308 CHARACTERISTICS OF CONCRETE: 1. All concrete should have a specified 28 -day compressive strength of 3_,__O.O_O._.p..sj. Concrete should be manufactured and delivered in accordance with ASTM C 94; Standard Specification for ready mixed concrete. 2. Four (4) to six (6) percent air should be entrained in the concrete. 3. The maximum coarse aggregate size should not be greater than one-fourth the slab depth. 4. Maximum slump should be four (4) inches_+ one (1) inch. II. SUBGRADE PREPARATION: 1. Prior to beginning paving operations, all vegetation .should be removed to a depth of at least six (6) inches. The exposed surface should then be scarified and recompacted to at least 95 percent of the maximum dry density as deter- mined by the Standard Proctor Test (ASTM D 698) at a moisture content within three (3) percent of the optimum value. Maxim Engineers Inc. 0 C~ 0 o 0 o - A-10 Expansion joints' or isolation joints should be used to isolate fixed objects abutting or within the paved area. They should contain premolded joint filler for the full depth of the slab and should be sealed prior to opening to traffic. 4. Utilization of an integral curb is recommended. Maxim Engineers Inc. _= Stz~ct~e Isolation Joint JOINT CROSS-SEL-TIONS Sawed Joint 4 Typical ,But. t-facgd ~[~struc d l :ion Joint pr~olded Filler Joint pre~lded Filler ' Flush with Surface Keyed Oonstruction Joint d Hand-Fonm~ Joint in. max. Radi~us~ T Thickened Edge Isolation Jo'~nt Expa, _ nsion Material- - Use only where wheel loads will cross the joint Structure Note: Ail joints should be cleaned and sealed prior to opening to traffic. Samples S,mbo, Penetromeler Blows/Foot or - 0 Moisture Content ~ Unit DW Weight Lbs./Cu. Ft. Liquid Limit Plastic Limit Plasticity Index % Passing No. 2~ Sieve Unconfined Compression Lbs./Sq. Fl.