Research On The Basic Properties Of Recycled Concrete

With the pace of urban construction,construction waste is also increasing. Recycled concrete technology can solve the problem of waste concrete,but also save natural gravel,and recycled concrete technology is one of the main measures that it achieves construction resources and the environment for sustainable development. Recycling of waste concrete is still in the pilot phase of exploration in our country, testing research of recycled concrete has important theoretical and practical value.In this paper,by looking up a large number of documents,the home and abroad present situation of recycled concrete technology are summed up,recycled concrete technology researched on existence problems and development prospects are explored. Combining with test studying of recycled concrete,the influence of the strength of the original concrete on the basic properties of recycled aggregate is analyzed,and it is proposed that with the enhancement of the strength of original concrete,the water absorption rate and crushing value of recycled concrete aggregate decreased,however, the apparent density increased;the influence rule of the strength of the original concrete on the compressive strength and the cleavage tensile strength of and recycled concrete is analyzed.It is summed up through the test that the compressive strength and the cleavage tensile strength of and recycled concrete increased with the enhancement of the strength of recycled coarse aggregate.At last,combining with the project example, application of recycled concrete technology is analyzed.The purpose is to provide a scientific basis for promote the recycled concrete technology and speed the sustainable development of the construction industry.