Open AccessJournal Article
Investigation The Properties Of Concrete Containing Rice Husk Ash To Reduction The Seepage In Canals.
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In this article, the effect of rice husk ash (RHA) on fresh and hardened properties of concrete which used to reduce the seepage in the canal lining was studied.Abstract:
In this research effect of rice husk ash (RHA) on Fresh and Hardened Properties of concrete which used to reduction the seepage in the canal lining was studied. To establish the suitable proportion of RHA for the partial replacement of cement, Concrete specimens was molded with 10%, 20%, and 30% of (RHA) replacing the cement, and measured it to workability, compressive strength, splitting tensile strength, dryings shrinkage, The results were compared with the concrete mix that does not contain RHA. The obtained results indicated that it was a significant reduction of workability in fresh concrete with the increase amount of RHA content in concrete, and it was an increase in the compressive strength and splitting tensile strength by increased of RHA% until 20% , The maximum increment is around 10.5%and 11% for the compressive strength and splitting tensile strength respectively then it were decrease with the increase of RHA to 30%, the decrease was around 17 % and 10.5% for compressive strength and tensile splitting strength respectively. The test of drying shrinkage indicated that it was decreased with increased of RHA%, the maximum decreased given by 30% RHA it was about 28% of normal concrete shrinkage after 90 days age. Key word: Concrete properties, Rice Husk Ash, Seepage, canal. ————————————————————read more
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Reference EntryDOI
American Society for Testing and Materials
TL;DR: The American Society for Testing and Materials (ASTM) as mentioned in this paper is an independent organization devoted to the development of standards for testing and materials, and is a member of IEEE 802.11.
Journal ArticleDOI
Structure and properties of mortar and concrete with rice husk ash as partial replacement of ordinary Portland cement – A review
TL;DR: In this paper, a comprehensive and up-to-date review of the work of numerous researchers on structure and properties of concrete containing rice husk ash (RHA) as partial replacement of ordinary Portland cement is presented.
Journal ArticleDOI
Properties of bacterial rice husk ash concrete
TL;DR: In this article, the influence of bacteria on the properties of concrete made with rice husk ash (RHA) is presented in the context of making concrete with and without bacteria.
Journal ArticleDOI
Strength and Durability Performance of Alkali-Activated Rice Husk Ash Geopolymer Mortar
TL;DR: Results indicated that the increase in curing period and concentration of alkali activator increased the compressive strength and hence RHA has great potential as a substitute for ordinary Portland cement concrete.
Journal ArticleDOI
Fresh and Hardened Properties of Concrete Incorporating Binary Blend of Metakaolin and Ground Granulated Blast Furnace Slag as Supplementary Cementitious Material
Naraindas Bheel,Suhail Ahmed Abbasi,Paul O. Awoyera,Oladimeji B. Olalusi,Samiullah Sohu,Carlos Rondon,Ana María Echeverría +6 more
Abstract: +e growing demand for cement has created a significant impact on the environment. Cement production requires huge energy
consumptions; however, Pakistan is currently facing a severe energy crisis. Researchers are therefore engaged with the introduction
of agricultural/industrial waste materials with cementitious properties to reduce not only cement production but also
energy consumption, as well as helping protect the environment. +is research aims to investigate the influence of binary
cementitious material (BCM) on fresh and hardened concrete mixes prepared with metakaolin (MK) and ground granulated blast
furnace slag (GGBFS) as a partial replacement of cement. +e replacement proportions of BCM used were 0%, 5%, 10%, 15%, and
20% by weight of cement. A total of five mixes were prepared with 1 : 1.5 : 3 mix proportion at 0.54 water-cement ratios. A total of
255 concrete specimens were prepared to investigate the compressive, tensile, and flexural strength of concrete after 7, 28, and 56
days, respectively. It was perceived that the workability of concrete mixes decreased with an increasing percentage of MK and
GGBFS. Also, the density and permeability of concrete decreased with an increasing quantity of BCM after 28 days. Conversely,
the compressive, tensile, and flexural strength of concrete were enhanced by 12.28%, 9.33%, and 9.93%, respectively, at 10% of
BCM after 28 days. +e carbonation depth reduced with a rise in content of BCM (up to 10%) and then later improved after 28, 90,
and 180 days. Moreover, the effect of chloride attack in concrete is reduced with the inclusion of BCM after 28 and 90 days.
Similarly, the drying shrinkage of concrete decreased with an increase in the content of BCM after 40 days.
References
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Reference EntryDOI
American Society for Testing and Materials
TL;DR: The American Society for Testing and Materials (ASTM) as mentioned in this paper is an independent organization devoted to the development of standards for testing and materials, and is a member of IEEE 802.11.
Journal ArticleDOI
Mechanical properties and durability assessment of rice husk ash concrete
TL;DR: In this paper, the effect of rice husk ash (RHA) on concrete properties and durability was studied and the degree of damage was studied by determining the percentage of reduction in compressive strength and chloride ions penetration as compared with control specimens that had cured normally.
Properties of Cement Paste Containing Rice Husk Ash
Chao-Lung Hwang,Dong-Sheng Wu +1 more
TL;DR: In this paper, the authors describe how rice husk ash (RHA) was obtained under different burning conditions from 400 to 1200°C, and the changes in the properties of the RHA were investigated using microanalytical techniques.