Experimental results show that the compressive strength of RC increases with the time growth, overall decline with the replace rate of RCA growth, but mostly less than 10% in the degree;
试验结果表明，再生混凝土的抗压强度随再生骨料取代率的增加而整体成下降趋势，但下降幅度不大，大都在10%以内；
Use high speed oscillation cobbra , ensure all parts of products have same strength during oscillation , prolong tester lifespan, decline failure rate.
采用高速振动头同步振动，保证在振动时各部位的产品受到的力的情况一致，并延长试验机的寿命及故障率的降低。
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