Use of Rice Husk Ash as Partial Replacement of Cement in Sandcrete Blocks

• Autorzy: Wajid Khan , Fahim Muhammad , Zaman Saeed , Khan Sajjad Wali , Badrashi Yasir Irfan , Khan Fayaz
• Języki publikacji: EN

Abstrakty

EN

This paper presents the outcome of a research study aimed at the performance evaluation of rice husk ash as partial replacement of cement in sandcrete blocks used as masonry units. Rice husk from rice cultivated in the North of Pakistan was used in the study. It was first combusted in a locally manufactured incinerator to convert it into rice husk ash (RHA) and then finely ground to powder form for use with cement. Blocks of size 305 mm×203 mm×152 mm were molded with 0, 10, 30, 40 and 50 % replacement of cement with RHA to find compressive strength at 3, 7, 14 and 28 days age of curing. The results showed that water requirement for the required workability of the sandcrete increased with increase in RHA content whereas compressive strength decreased with increase in RHA content. However, the comparison of compressive strengths of RHA sandcrete blocks with the strength of commercial concrete blocks available in the market and used as masonry units in Pakistan showed that sandcrete blocks having sand to binder ratio of 1:8 and using up to 40% of RHA as replacement of cement gave larger compressive strength than that of commercial concrete blocks and only marginally lower strength for 50% replacement.

Słowa kluczowe

EN

compressive strength; Rise husk ash; sandcrete blocks; masonry unit; pozzolanic

• Wydawca: Lublin University of Technology ; Polish Society of Ecological Engineering (PTIE), Branch of PTIE in Lublin
• Czasopismo: Advances in Science and Technology. Research Journal
• Rocznik: 2021
• Tom: Vol. 15, no 2
• Strony: 101--107
• Opis fizyczny: Bibliogr. 20 poz., fig., tab.

Twórcy

autor

Wajid Khan

• Department of Civil Engineering, University of Engineering and Technology, Peshawar, Pakistan

autor

Fahim Muhammad

• Department of Civil Engineering, University of Engineering and Technology, Peshawar, Pakistan

• https://orcid.org/0000-0001-8955-5165

autor

Zaman Saeed

• Department of Civil Engineering, University of Engineering and Technology, Peshawar, Pakistan

autor

Khan Sajjad Wali

• Department of Civil Engineering, University of Engineering and Technology, Peshawar, Pakistan

autor

Badrashi Yasir Irfan

• Department of Civil Engineering, University of Engineering and Technology, Peshawar, Pakistan

autor

Khan Fayaz

• Department of Civil Engineering, University of Engineering and Technology, Peshawar, Pakistan

Bibliografia

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• 18. ASTM C618-05, Standard Specification for Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use in Concrete, ASTM International, West Conshohocken, PA, 2005.
• 19. ASTM C150-07, Standard Specification for Portland Cement; ASTM International, West Conshohocken, PA, 2007.
• 20. ASTM C90-16a, Standard Specification for Loadbearing Concrete Masonry Units, ASTM International, West Conshohocken, PA, 2016.

Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).