TY  - JOUR
T1  - Enhancement Conventional Concrete using locally available Waste Material
AU  - Alı, Ali Hussein
AU  - Suleıman, Saleh Jaafer
AU  - Hameed, Mahmoud Majid
PY  - 2019
DA  - July
JF  - The Eurasia Proceedings of Science Technology Engineering and Mathematics
JO  - EPSTEM
PB  - ISRES Publishing
WT  - DergiPark
SN  - 2602-3199
SP  - 188
EP  - 194
VL  - 6
LA  - en
AB  - Concreteis a nifty construction material. Concrete has some attractive properties whenit is newly mixed, it is plastic and malleable, but when it is hardened itbecomes very strong and durable. These qualities make concrete unique fromother materials. For the reason that concrete is the main construction materialacross the world and widely used in all kinds of civil engineering works, suchas for building skyscrapers, dams, bridges,barrage, highways, and houses. As weknow that aggregate represents about 70-80% of concrete elements, so it will beuseful to recycle the aggregate for construction works and also to solve theenvironmental problems. Iraq is suffering a lot of the problem of rubble(debris)  as a result of the wars that occurred duringthe past years, on the other hand in some places have been converted buildingsfrom residential buildings to commercial buildings, so these destroyedbuildings constitute the problem of environmental pollutants. To minimize the trouble of excess of waste material itis suitable steps to utilize the recycled aggregates provide that the desiredfinal product will meet the standards. In the present investigation adjustmentsto traditional mix designs ofconcrete using locally available waste material was studied experimentally.The experimental programconsisted of nine mixes with mix proportions [1:2:4] and constant slumpequal to (13) cm were constructed and tested. These nine mixes classified intothree groups based on the types of sand and gravel used in all mixes.Theexperimental results showed that, the optimum mix was Mix2 in Group (B) with (cement : 50%naturally sand and 50% crushed recycled concrete as sand : crushed boulder asgravel), which enhance the properties of the existing concrete , such that, increasing compressive strength by (18.6%), flexuralstrength by (8.3%) and splitting strength by (28.9%), as comparing with Mix1 (Reference mix). 
KW  - Conventional concrete
KW  - Concrete locally waste material
KW  - Compressive strength
KW  - Flexural strength
KW  - Splitting strength
CR  - Buck, A., D., (1977). “Recycled concrete as a source of aggregate”. ACI Journal,74, 212–219.
Hansen, T., C., & Hedegkd, S. E. (1984, January). “Properties of recycled aggregate concretes as affected by admixtures in original concretes”. In Journal Proceedings (Vol. 81, No. 1, pp. 21-26).‏       
Rahal, K., (2007). “Mechanical properties of concrete with recycled coarse aggregate”. Building and environment, 42(1), 407-415.
Specification, I., S., No. 5 1984 Portland cement. Ministry of Planning, Central Organization for Standardization and Quality Control.
ASTM., (2012). ASTM C1602/C1602M-12: Standard specification for mixing water used in the production of hydraulic cement concrete.
UR  - https://dergipark.org.tr/en/pub/epstem/issue//626501
L1  - https://dergipark.org.tr/en/download/article-file/818926
ER  -