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SECTION 02271.0 RIP RAP <br />• PART 1: GENERAL <br />1.01 <br />All work shall be carried out in compliance with these SPECIFICATIONS and in conformance with the <br />lines, grades and dimensions as shown on the DRAWINGS. <br />1.02 RELATED SECTIONS: <br />Refer to the following Sections for related work: <br />Section 02200.0 Earthworks <br />Section 03300.0 Cast-in-place Concrete <br />PART 2: SPECIFICATIONS AND INSTALLATION <br />2.01 MATERIAL SPECIFICATIONS <br />A. Rip rap shall consist of hazd, dense, durable stone, angulaz in shape and resistant to weathering. <br />Rounded stone or boulders will not be accepted as rip rap material. The stone shall have a <br />specific gravity of at least 2.5. Each piece shall have its greatest dimension not greater than three <br />times its least dimension. If approved by CERTIFYING ENGINEER, removed concrete may <br />be used for rip rap provided it meets the other requirements of this section. <br />B. Material used for rip tap will be approved by CERTIFYING ENGINEER if, by visual <br />• inspection, the rock is detetrnined to be sound and durable. MANAGER and CERTIFYING <br />ENGINEER may require CONTRACTOR to furnish laboratory results to verify that the <br />material meets SPECIFICATIONS. At the request of MANAGER, CONTRACTOR shall <br />furnish laboratory test results indicating that the material meets the requirements for strength as <br />indicated in the following table. <br />Test, ks rtptebn; ')iesS,~Method SpecrficattoniRequ~remenfpj <br />Point Load Tensile Strength 300 psi (min) <br />C. Rip rap shall conform to the gradation requvements given in the following table: <br />~~Stoue Si~ze'~'~ *(ui)~ <br /> <br />~ ~"P rcen ofaMaferiat Sro llu <br />-~ tr ~-~ a r !~T~pfcai Stonre f. <br />~ a <br />y ,. <br />,~~* ~~ z 4 <br />~~ „ thaniT}prcafSt °e~. ~Dimeris~ons'~(rn) <br />6 70 - 100 12 <br /> 50-70 9 <br /> 35 - 50 6 <br /> 2-10 2 <br />Notes: <br />1) d5o =average stone size <br />2) based on typical rock weight <br />3) equivalent spherical diameter <br />• 4) based on a specific gravity of 2.5 <br />D. Nominal stone size and total thickness ofthe rip rap shall be as shown on the DRAWINGS. <br />Section 02271 Page 1 of 2 Mazch 22, 2000 <br />Rip Rap Golder Associates Revision 2 <br />I:1 W1Z20J10i W~CEItiREP0802V3PENDSAPPEN22]IR2.DOC <br />