A Review Study on Rice Husk Ash as Cement Replacement: A Guide for Civil Engineer

2021 ◽  
Author(s):  
Cihan Özçelik ◽  
Semih Özcan Doğan ◽  
Huriser Aleyna Başaran ◽  
Mehmet Kağan Çelik
Author(s):  
Zaidatul Syahida Adnan ◽  
Nur Farhayu Ariffin ◽  
Sharifah Maszura Syed Mohsin ◽  
Nor Hasanah Abdul Shukor Lim

2018 ◽  
Author(s):  
Nik Norsyahariati Nik Daud ◽  
Mohd Nazrin Mohd Daud ◽  
Abubakar Sadiq Muhammed

2019 ◽  
Author(s):  
Subandi

The use of waste ash, lately a lot of research is done, in the manufacture of concrete, which aims as an added material, SCM cement replacement material, and so forth. Some ashes that have been used in research into the manufacture of concrete have been tested on chemical content, to determine whether ash from HVS paper waste can be used as a mixture for making concrete, in this experiment the parameters of the chemical content are tested according to the chemicals contained in chemical chemistry. Chemical content research using ASTM method, from the results obtained ash from paper waste ash has a high CaO chemical content above 90%, when compared with the chemical from rice husk ash where the highest chemical content of rice husk ash is SiO2, Conclusion obtained that paper waste ash can be tested as a mixture in making concrete because it has a high CaO content, when compared with the chemical content of cement where the chemical content in cement has a higher CaO chemical content.


2014 ◽  
Vol 534 ◽  
pp. 3-8 ◽  
Author(s):  
Che Wan Che Norazman ◽  
Ramadhansyah Putra Jaya ◽  
Sri Jayanti Dewi ◽  
Badorul Hisham Abu Bakar ◽  
M.A. Fadzil

The influences of different replacement levels of rice husk ash (RHA) blended cement concrete subjected to 5% Na2SO4 solution via wetting-drying cycles was evaluated in this study. RHA was used as a Portland cement Type I replacement at the levels of 0%, 10%, 20, 30%, and 40% by weight of binder. The water-to-binder ratio was 0.49 to produce concrete having target strength of 40 MPa at 28 days. The performance of RHA blended cement concrete on compressive strength, reduction in strength and loss of weight was monitored for up to 6 months. The results of the compressive strength test have been shown that use of RHA in blended cement has a significant influence on sulfate concentration. When increasing the replacement level of RHA, the strength of concrete also increases in comparison to OPC concrete (except RHA40) even exposed to 5% Na2SO4 solution. On the other hand, the reduction in strength and weight loss of specimens increased with increase in the exposure time. Generally, it can be said that the incorporation of rice husk ash as cement replacement significantly improved the resistance to sulfate penetration of concrete. Finally, RHA cement replacement in concrete mixed provided better resistance to sodium sulfate attack up to 6-month exposure.


2018 ◽  
Vol 775 ◽  
pp. 624-629
Author(s):  
Kantapong Boontawee ◽  
Withit Pansuk ◽  
Luangvaranunt Tachai ◽  
Katsuyoshi Kondoh

Rice husk ash (RHA) is used as a replacement to cement to produce mortar. The effect of 5, 10, and 15wt% addition to the density and compressive strength of mortar is investigated. It was found that with the increasing addition of RHA causes the decrease of compressive strength and density of mortars. Compressive strength of mortar drops with addition of RHA, from a value of 42 MPa of no RHA addition, to 24 MPa of 15wt% RHA addition. Reduction in compression strength may be due to the decrease in density, which arises from porous RHA. This is more dominant in mortar made from addition of RHA without prior acid treated. Carbon residue and impurity in RHA further reduce the compressive strength of mortar. In addition, this research validate the use of a more environmentally friendly citric acid for partially removal of oxide impurities prior to burning the rice husk.


2013 ◽  
Vol 51 ◽  
pp. 35-44 ◽  
Author(s):  
Satish H. Sathawane ◽  
Vikrant S. Vairagade ◽  
Kavita S. Kene

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