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Enhancement Conventional Concrete using locally available Waste Material

Year 2019, Volume: 6 , 188 - 194, 25.07.2019

Abstract

Concrete
is a nifty construction material. Concrete has some attractive properties when
it is newly mixed, it is plastic and malleable, but when it is hardened it
becomes very strong and durable. These qualities make concrete unique from
other materials. For the reason that concrete is the main construction material
across the world and widely used in all kinds of civil engineering works, such
as for building skyscrapers, dams, bridges,barrage, highways, and houses. As we
know that aggregate represents about 70-80% of concrete elements, so it will be
useful to recycle the aggregate for construction works and also to solve the
environmental problems
. Iraq is suffering a lot of the problem of rubble(debris)  as a result of the wars that occurred during
the past years, on the other hand in some places have been converted buildings
from residential buildings to commercial buildings, so these destroyed
buildings constitute the problem of environmental pollutants.
To minimize the trouble of excess of waste material it
is suitable steps to utilize the recycled aggregates provide that the desired
final product will meet the standards. In the present investigation adjustments
to traditional mix designs
of
concrete using locally available waste material
was studied experimentally.The experimental program
consisted of nine mixes with mix proportions [1:2:4] and constant slump
equal to (13) cm were constructed and tested. These nine mixes classified into
three groups based on the types of sand and gravel used in all mixes.The
experimental 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 as
gravel
), which enhance the properties of the existing concrete , such that, increasing compressive strength by (18.6%), flexural
strength by (8.3%) and splitting strength by (28.9%), as comparing
with Mix1 (Reference mix). 

References

  • 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.
Year 2019, Volume: 6 , 188 - 194, 25.07.2019

Abstract

References

  • 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.
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Details

Primary Language English
Subjects Engineering
Journal Section Articles
Authors

Ali Hussein Alı

Saleh Jaafer Suleıman

Mahmoud Majid Hameed

Publication Date July 25, 2019
Published in Issue Year 2019Volume: 6

Cite

APA Alı, A. H., Suleıman, S. J., & Hameed, M. M. (2019). Enhancement Conventional Concrete using locally available Waste Material. The Eurasia Proceedings of Science Technology Engineering and Mathematics, 6, 188-194.