Compressive strength and durability of foamed concrete incorporating Processed Spent Bleaching Earth

Archives of civil engineering

article

Rokiach Othman¹  Khairunisa Muthusamy¹  Mohd Arif Sulaiman¹  Youventharan Duraisamy²  Ramadhansyah Putra Jaya²  Chong Beng Wei¹  Mohd Mustafa Al Bakri Abdullah³  Sajjad Ali Mangi⁴  Marcin Nabiałek⁵  Agata Śliwa⁶ 

[1] Faculty of Civil Engineering Technology, University Malaysia Pahang;Department of Civil Engineering, College of Engineering, University Malaysia Pahang;Center of Excellence Geopolymer and Green Technology, University Malayia Perlis;Department of Civil Engineering, Mehran University of Engineering and Technology, SZAB Campus;Department of Physics, Faculty of Production Engineering and Materials Technology, Częstochowa University of Technology;Division of Materials Processing Technology and Computer Techniques in Materials Science, Silesian University of Technology

关键词: strength;    porosity;    chloride resistance;    foamed concrete;    processed spent bleaching earth;   

DOI  :  10.24425/ace.2022.140663

学科分类：建筑学

来源: Polska Akademia Nauk * Instytut Podstawowych Problemow Techniki / Polish Academy of Sciences, Institute of Fundamental Technological Research

【 摘 要 】

Foamed concrete incorporating processed spent bleaching earth (PSBE) produces environmentally friendly foamed concrete. Compressive strength, porosity, and rapid chloride penetration tests were performed to investigate the potential application for building material due to its low density and porous concrete. Laboratory results show that 30% PSBE as cement replacement in foamed concrete produced higher compressive strength. Meanwhile, the porosity of the specimen produced by 30% PSBE was 45% lower than control foamed concrete. The porosity of foamed concrete incorporating PSBE decreases due to the fineness of PSBE that reduces the volume of void space between cement and fine aggregate. It was effectively blocking the pore and enhances the durability. Consistently, the positive effect of incorporating of PSBE has decreased the rapid chloride ion permeability compared to that control foamed concrete. According to ASTM C1202-19 the foamed concrete containing 30% PSBE was considered low moderate permeability based on its charge coulombs value of less than 4000. Besides, the high chloride ion permeability in foamed concrete is because the current quickly passes through the specimen due to its larger air volume. In conclusion, incorporating PSBE in foamed concrete generates an excellent pozzolanic effect, producing more calcium silicate hydrate and denser foamed concrete, making it greater, fewer voids, and higher resistance to chloride penetration.

【 授权许可】

Unknown