Engineering Properties of Self Compacting Concrete Incorporating Metakaolin and Rice Husk Ash: A Review

2018 ◽  
pp. 187-191
Author(s):  
Baban Kumar
Keyword(s):  
Rice Husk ◽  
Rice Husk Ash ◽  
Engineering Properties ◽  
Self Compacting Concrete

scholarly journals The use of rice husk ash as admixture in producing self-compacting concrete

2019 ◽  
Vol 1378 ◽  
pp. 042061
Author(s):  
Adeoye Olowofoyeku ◽  
Olatokunbo Ofuyatan ◽  
Ajao Adekunle
Keyword(s):  
Rice Husk ◽  
Rice Husk Ash ◽  
Self Compacting Concrete

Development of Geopolymer Mortar from Metakaolin Blended with Agricultural and Industrial Wastes

2018 ◽  
Vol 766 ◽  
pp. 305-310 ◽  
Author(s):  
Chayanee Tippayasam ◽  
Sarochapat Sutikulsombat ◽  
Jamjuree Paramee ◽  
Cristina Leonelli ◽  
Duangrudee Chaysuwan
Keyword(s):  
Compressive Strength ◽  
Fly Ash ◽  
Rice Husk ◽  
Rice Husk Ash ◽  
Chemical Properties ◽  
Cement Industry ◽  
Industrial Wastes ◽  
Engineering Properties ◽  
Alkali Solutions ◽  
Physical And Chemical

Geopolymer is a greener alternative cement produced from the reaction of pozzolans and strong alkali solutions. Generally, the cement industry is one of largest producers of CO2that caused global warming. For geopolymer mortar usage, Portland cement is not utilized at all. In this research, geopolymer mortars were prepared by mixing metakaolin, various wastes (fly ash, bagasse ash and rice husk ash) varied as 80:20, 50:50 and 20:80, 15M NaOH, Na2SiO3and sand. The influence of various parameters such as metakaolin to ashes ratios and pozzolans to alkali ratios on engineering properties of metakaolin blended wastes geopolymer mortar were studied. Compressive strength tests were carried out on 25 x 25 x 25 mm3cube geopolymer mortar specimens at 7, 14, 21, 28 and 91 air curing days. Physical and chemical properties were also investigated at the same times. The test results revealed that the highest compressive strength was 20% metakaolin - 80% fly ash geopolymer mortar. When the curing times increases, the compressive strength of geopolymer mortar also increases. The mixing of metakaolin and bagasse ash/rice husk ash presented lower compressive strength but higher water absorption and porosity. For FTIR results, Si-O, Al-O and Si-O-Na+were found. Moreover, the geopolymer mortar could easily plastered on the wall.

Utilization of Rice Husk Ash as viscosity modifying agent in Self Compacting Concrete

2011 ◽  
Vol 25 (2) ◽  
pp. 1044-1048 ◽  
Author(s):  
Shazim Ali Memon ◽  
Muhammad Ali Shaikh ◽  
Hassan Akbar
Keyword(s):  
Rice Husk ◽  
Rice Husk Ash ◽  
Self Compacting Concrete ◽  
Modifying Agent

Rice Husk Ash as Fine Aggregate Sustainable Material for Strength Enhancement of Conventional and Self Compacting Concrete

2016 ◽  
Vol 692 ◽  
pp. 94-103
Author(s):  
S.S. Samantaray ◽  
K.C. Panda ◽  
M. Mishra
Keyword(s):  
Rice Husk ◽  
Rice Husk Ash ◽  
Fresh Concrete ◽  
Partial Replacement ◽  
Hardened Concrete ◽  
Fine Aggregate ◽  
Self Compacting Concrete ◽  
Strength Enhancement ◽  
Slump Flow ◽  
Concrete Property

Rice husk ash (RHA) is a by-product of the rice milling industry. Near about 20 million tonnes of RHA is produced annually which creates environmental pollution. Utilization of RHA as a supplementary cementitious material adds sustainability to concrete by reducing CO2 emission of cement production. But, the percentage of utilization of RHA is very less. This paper presents the results of an experimental investigation to study the effects of partial replacement of fine aggregate with RHA on mechanical properties of conventional and self-compacting concrete (SCC). The fine aggregate is replaced by RHA in conventional concrete (CC) with six different percentage by weight such as 0%, 10%, 20%, 30%, 40% and 50% having w/c ratio 0.375 with variation of super plasticiser dose, whereas in SCC the replacement of fine aggregate by RHA is 0%, 10%, 20%, 30%, 40%. The design mix for CC is targeted for M30 grade concrete. The fresh concrete test of SCC is conducted by using slump flow, T500, J-ring, L-box, U-box and V-funnel to know the filling ability, flow ability and passing ability of SCC. As fresh concrete property concerned, the result indicates that the slump flow value satisfied the EFNARC 2005 guidelines upto 30% replacement of fine aggregate with RHA whereas 40% replacement did not satisfy the guideline. As hardened concrete property concerned, the compressive strength, split-tensile strength and flexural strength of CC and SCC are determined at 7, 28 and 90 days. The test result indicates that upto 30% replacement of fine aggregate with RHA enhances the strength in CC whereas the strength enhancement in SCC upto 20% replacement.

Engineering properties of lightweight geopolymer synthesized from coal bottom ash and rice husk ash

2018 ◽  
Author(s):  
Nguyen Hoc Thang ◽  
Nguyen Ngoc Hoa ◽  
Pham Vo Thi Ha Quyen ◽  
Nguyen Ngoc Kim Tuyen ◽  
Tran Vu Thao Anh ◽  
...  
Keyword(s):  
Rice Husk ◽  
Rice Husk Ash ◽  
Bottom Ash ◽  
Engineering Properties ◽  
Coal Bottom Ash

scholarly journals Combined effects of rice husk ash and nylon fiber on engineering properties of cement mortar

2020 ◽  
Vol 2 (3) ◽  
Author(s):  
Lalani Fernando ◽  
Karunananda Pemasiri ◽  
Buddhika Dassanayake
Keyword(s):  
Rice Husk ◽  
Rice Husk Ash ◽  
Cement Mortar ◽  
Engineering Properties ◽  
Combined Effects ◽  
Nylon Fiber
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