粗骨料对高性能混凝土抗压强度的影响.pdf

2 1998 4 ( 74 ) ( 5 10000) ( 100084) = 30 M Pa , , , , = EF FE CT OF COU RSE AGGRE GAT E ON CO M PRESSIV E ST R EN GT H O F HIGH PERFORM A NCE CON CRET E X ing Feng Feng N aiqian In norma concrete w ith compressive strength about 30 M Pa, the course aggr eg ates have not been dam- aged w hen t he concrete crushed by compressive test1 But fo r the high performance concrete ( H P C) , a of the coarse agg reg ates in concrete ar e crushed by the compressive test of concrete1T he ex periments fo r the ef- f ect of the v o ume content and maximum size of diff erent types of coarse agg regate o n compressiv strength of concrete have been done1A ccording to t he resu ts of the test , the mathematica mode is attended to eva uate the properties of the coarse ag gregates1 Key w or ds: Coarse ag gregate, high performance concrete, vo ume content o f coarse agg regate, max i- mum size of coarse agg reg ate, compressiv e st rength1 , ( 5) : ¹ , 2165, 30M P a , 01 59% , 3912% , Dmax = 20mm ; º ; ( C60 ) , , 2162, 0149% , , , 3211% , Dmax= 20mm ; » , 1129, , ( Dmax ) , 25% , 391 7 % , Dmax = 15mm , ; , : 1 , ,