Reuse of recycle paper mill waste in energy absorbing light weight bricks

• Published in: Construction & building materials 2012-02, Vol.27 (1), p.247-251
• Main Authors: Raut, S.P., Sedmake, Rohant, Dhunde, Sunil, Ralegaonkar, R.V., Mandavgane, Sachin A.
• Format: Article
• Language: English
• Subjects: Analysis; Bricks; Compressive strength; Ecological footprint; Light weight; Paper mills; Properties; Recycle paper mills waste; Shock absorbing; Waste management; Waste-create bricks
• ISSN: 0950-0618; 1879-0526
• DOI: 10.1016/j.conbuildmat.2011.07.053

► Recycle paper mill waste (RPMW) utilized to make construction bricks. ► It serves the purpose of solid waste management, revenue generation and earning carbon credits. ► Bricks with varying composition of RPMW (0–20% wt), and cement prepared. ► Brick meets ASTM C 67-03a standards. ► Bricks are light weight and energy absorbing. Recycle paper mills (RPM) contribute 30% of total pulp and paper mill segment in India. With 85% average efficiency of RPM, 5% waste (RPMW) is produced annually. RPMW which otherwise is land filled has been utilized to make construction bricks that serves a purpose of solid waste management, new revenue generation and earning carbon credits. RPMW-cement combination low carbon foot print bricks with varying composition of cement (0–20% wt) have been prepared and tested as per ASTM C 67-03a standards. RPMW has been characterized using X-ray fluorescence (XRF), thermogravimetric and differential thermal analysis (TG–DTA), X-ray Diffraction (XRD) and Scanning Electron Microscopy (SEM). TG–DTA confirms thermal stability till 280 °C whereas SEM monographs show the pores and fibrous nature. From experimentation it is observed that waste-create bricks (WCB) prepared using RPMW-cement combination is light weight, shock absorbing and meets compressive strength requirements of ASTM C 67-03a. The brick making procedure being simple can be undertaken as rural entrepreneurship by unskilled labors of developing countries.