期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2016
卷号：5
期号：11
页码：19605
DOI：10.15680/IJIRSET.2016.0511157
出版社：S&S Publications
摘要：The recycling of Construction and Demolition Wastes has long been accepted to have the possible toconserve natural resources and to decrease energy used in production. In some nations it is a standard substitute forboth construction and maintenance, particularly where there is a scarcity of construction aggregate. The use of recycledaggregate weakens the quality of recycled aggregate concrete which limits its application. Concrete recycling gainsimportance because it protects natural resources and eliminates the need for disposal by using the readily availableconcrete as an aggregate source for new concrete or other applications. The quality of concrete with recycled aggregateconcrete (RAC) is very dependent on the quality of the recycled material used.As there is much amount of data regarding mechanical properties of recycled aggregates concrete, but fewdata is only available on fracture parameters of RA. A study is carried out on fracture parameters on RA in varyingproportions (0%, 25%, 50%, 75% and 100%) as a replacement of natural aggregate used in Normal concrete, selfcompactingconcrete and high-strength concrete. An even size of 10mm coarse aggregate is used through the work.Various fracture parameters such as fracture toughness, fracture energy(Gf), characteristic length of thematerial(Lch), stress intensity factor(KI) and Brittleness number are determined by measuring the maximum loads ofgeometrically similar single edge notched concrete prisms. Finally, a comparison is drawn by presenting graphs whichshows the variation in Load- Deflection, Load-CMOD and Deflection-CMOD with variation in % replacement ofrecycled aggregate.
