无侧限抗压强度试验:_,AdLÐ×ÊUbbs.3c3t.com<ê.$}TO
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(1)将已浸水一昼夜的试件从水中取出,用软的旧布吸试件表面的可见自由水,并称试件的质量m4。_,AdLÐ×ÊUbbs.3c3t.com<ê.$}TO
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(2)用游标卡尺量试件的高度h1,准确到0.1mm。_,AdLÐ×ÊUbbs.3c3t.com<ê.$}TO
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(3)将试件放到路面材料强度试验仪的升降台上(台上先放一扁球座),进行抗压试验。试验过程中,应使试_,AdLÐ×ÊUbbs.3c3t.com<ê.$}TO
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件的形变等速增加,并保持速率约为lmm/min记录试件破坏时的最大压力P(N)。_,AdLÐ×ÊUbbs.3c3t.com<ê.$}TO
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(4)从试件内部取有代表性的样品(经过打破)测定其含水量w1。_,AdLÐ×ÊUbbs.3c3t.com<ê.$}TO
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(5).计算试件的无侧限抗压强度Rc。Rc0.95(=Rc-1.645S)。允许误差:若干次平行试验的偏差系数Cv(%)应符_,AdLÐ×ÊUbbs.3c3t.com<ê.$}TO
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合下列规定:小试件 不大于10%,中试件 不大于15%,大试件 不大于20%_,AdLÐ×ÊUbbs.3c3t.com<ê.$}TO
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