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fi <br /> Project No. 9ol61.e <br /> 7 ,lune 1990 <br /> k3 <br /> of less than � <br /> All slabs should be poured at a maximum slump <br /> E..a content is <br /> inches. Excessive water the major cause of concrete <br /> } cracking- <br /> r <br /> reat <br /> Ar than- 250 p.s.f are anticipated, the slab <br /> if floor loads g <br /> ,.s should be -evaluated by the structural Engineer. <br /> .- concrete flatwork need not be <br /> underlain by a rock <br /> 6, Exterior ated when <br /> cushion. Some vertical movement should bean If knforcement is <br /> ., joints. <br /> arranging outside concrete flatwork 7 co separate the <br /> not utilizedr a tool joint should be p <br /> rovided <br /> are feet (400 <br /> surface area of the slabs to less qu <br /> than 150 s]Dints spaced not more <br /> if fiber mesh is utilized with <br /> square feat <br /> r, than 20 feet in any direction) - <br /> 7. For design of <br /> concrete flocrs, a modulus of subgrade reaction <br /> of k = 200 p.s.i• per inch would be applicable. <br /> i <br /> 13 <br /> t <br />