摘要
通过室内试验对再生混凝土的基本性能和力学性能进行测试,探讨其在公路基层中应用的可行性。测试结果表明,全普通再生混凝土的力学性能和水稳定性、抗冻耐久性都比全天然混凝土差,但经过球磨改善的再生混凝土的7 d抗压强度超过3.5 MPa,14 d浸水+14 d标养的抗压也达到5.56 MPa,5次冻融循环后的抗压强度损失不到20%,这些指标均均高于全天然混凝土,表明其具有良好的路用性能。
The basic properties and mechanical properties of recycled concrete was tested, and the feasibility of its application in high- way grassroots was explored.The test results showed that the of ordinary recycled concrete mechanical properties and water stability.How- ever,the 7 d compressive strength of recycled concrete after milling was more than 3.5 MPa,the compressive strength of 14 d immersion in water conservation and 14 d standard conservation reached 5.56 MPa,compressive strength loss of 5 freeze-thaw cycle was less than 20%, these indicators were higher than the all-natural concrete, showed that it had good road performance.
出处
《混凝土》
CAS
CSCD
北大核心
2013年第9期83-86,共4页
Concrete
关键词
再生混凝土
水稳定性
抗冻性
试验
recycled concrete
water stability
frost resistance
test
