%0 Journal Article
%T Compressive Strength of Concrete with Recycled Concrete Aggregate as Coarse Aggregate and Recycled Paving Block Aggregate as Fine Aggregate Partially Substituted by Recycled Brick Aggregate
%A Idi Priyono
%A Meiske Widyarti
%A Erizal
%J Asian Journal of Applied Sciences
%D 2020
%R 10.24203/ajas.v8i1.6057
%X An excessive extraction of natural resources for aggregate in concrete mix can caused an environmental degradation. £¿According to Indonesia ministry of industry in 2017, the use of cement is predicted will reach 84,96 million tons, that can affected the use of£¿aggregate for concrete mix are quadruplet to 250 ¨C 350 million tons.£¿Opimally, the use of recycled material is green method that can reduce an excessive extraction of natural aggregates and keep an environmental sustain.£¿The aim of this study is to obtain recycled aggregate concrete compressive strength and examine recycled aggregate concrete quality in days 3, 7, 28, 35, and 90 along with a proposal of the use of recycled aggregate concrete as a building construction material. This research used experimental method of£¿SNI 03-2834-2002£¿the standard of normal concrete mix design for f¡¯c 25 MPa then built five types of concrete mix of£¿REC B, REC C, REC D, REC E, and REC F with every types of concrete has four sample are used for compressive strength test. The fine recycled paving block aggregate (RPA) were used partially to substituted a fine recycled brick aggregate (RBA) at 0%, 25%, 50%, 75%, and 100% by weigth.£¿The result of this study showed the mixed concrete REC D with RCA 100%, RPA 50% and RBA 50% in 28 days is generate highest compressive strength than other recycle aggregates concrete mixes. Compressive strength at 28 days in a mix codes REC B, REC C, REC D, REC E and REC F are 18,12 MPa; 18,36 MPa; 19,35 MPa;16,69 MPa; and 16,39 MPa.£¿The results show that it is feasible to replace a natural aggregate entirely by recycled aggregates. With compressive strength over 17 MPa at 28 days, mix codes REC B, REC C and REC D are recommended to use the recycled aggregate concrete for structure of residential buildings but mix codes REC E and REC F aren¡¯t recommended and only allowed for non-structural concrete such as separate wall (SNI 8140:2016). Based on SNI 03-0691-1996 about solid brick concrete (paving block), recycle aggregate concrete with mix code of REC B, REC C, and REC D are able to use on paving block with B quality such as parking lot. While, recycled aggregate concrete with mix code of REC E and REC F are able to use on paving block with C and D quality which used for pedestrian, garden and other use.
%K [compressive strength
%K natural aggregates
%K recycled  aggregate
%K SNI 8140
%K 2016
%K SNI 03-0691-1996]
%U https://www.ajouronline.com/index.php/AJAS/article/view/6057