标规定的C15、C30混凝土的3天和28天强度分别是多少？要达到100%的强度大概需要多长时间？ c30的混凝土３天的强度值能够达到设计２８天强度的百分之多少...
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绛旓細C25:姘存偿寮哄害锛32.5Mpa 鍗电煶娣峰嚌鍦 姘存偿瀵屼綑绯绘暟1.00 绮楅鏂欐渶澶х矑寰20mm 濉旂綏搴35~50mm 姣忕珛鏂圭背鐢ㄦ枡閲忥細姘达細190 姘存偿锛463 鐮傚瓙锛489 鐭冲瓙锛1258 閰嶅悎姣斾负锛0.41锛1锛1.056锛1.717鐮傜巼28% 姘寸伆姣旓細0.41 C30:姘存偿寮哄害锛32.5Mpa 鍗电煶娣峰嚌鍦 姘存偿瀵屼綑绯绘暟1.00 绮楅鏂...
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绛旓細鏍规嵁銆婁腑鍗庝汉姘戝叡鍜屽浗鍥藉鏍囧噯:棰勬媽娣峰嚌鍦(GB/T 14902-2012)銆嬩腑鐨瑙勫畾锛氶噸閲忛獙鏀舵椂鍏佽鍋忓樊2%锛宑30娣峰嚌鍦瀹归噸濡傛灉鏄瘡绔嬫柟绫虫槸2400kg鐨勮瘽锛屽厑璁稿亸宸槸2400*2%=48kg锛屼篃灏辨槸璇1绔嬫柟绫崇殑c30娣峰嚌鍦熼噸閲忎笉灏戜簬2352kg灏辩鍚堝浗瀹舵爣鍑嗙殑瑙勫畾浜嗐
