Construction Rubble, Foundry Sand and Marble Waste Powder; as Raw Materials on Concrete Bricks Production

The construction wastes is one of the environmental problem not only in Egypt but also in the whole world. The main objective of this paper to evaluated the fully replacing of natural aggregate (NA) by construction wastes (CW), full replace of natural sand (NS) by foundry sand (FS) and partially replaced of Portland cement (OPC) by marble fine waste (MFW) on the compressive strength was found out at 7, 28 days and 90 days and explained if these trials could be used in bricks manufacturing so Concrete cubes of size 150*150*150 mm were prepared in this paper with a different replacement ratio of Portland cement (PC) by marble fine waste (MFW) were 0%, 10%, 20%, 30% and 50% by weight of cement. Results show that the compressive strength by 0%,10% 20%, 30% and 50% at 7, and 28 days which the cement was replace ratio of marble fine waste (MFW) (140-141,92-91,90-86,82-80,and 73-76 kg/cm2) respectively. The compressive strength of sample 50% replacement gives compressive strength (73 – 76 kg/cm2) which consider as lowest compressive strength of these trials however it utilized maximum amount of marble dust which contributed to the elimination of the largest amount of wastes and also can be used successfully in the concrete bricks manufacturing as Egyptian standard No. 1292 and Egyptian code ECP 204 which give the compressive strength is 70 kg/cm2. The present study demostrated that, the mixture can used in brick manufacturing as shipper and green method to utilize the different waste and make new sustainability products.