Please use this identifier to cite or link to this item:
Title: Mixture design and reaction sequence for recycling construction wood waste into rapid-shaping magnesia-phosphate cement particleboard
Authors: Wang, L 
Yu, IKM 
Tsang, DCW 
Li, S 
Poon, CS 
Issue Date: 2017
Publisher: American Chemical Society
Source: Industrial and engineering chemistry research, 2017, v. 56, no. 23, p. 6645-6654 How to cite?
Journal: Industrial and engineering chemistry research 
Abstract: This study has elucidated the roles of hydration chemistry and reaction-sequence of magnesia phosphate cement (MPC) in the upcyclirig of construction wood waste into rapid shaping cement-bonded particleboards. The mineralogy and microstructure were evaluated using thermogravimetry, quantitative X-ray. diffraction, scanning electron microscopy, and mercury intrusion porosimetry. The results showed that the magnesia-to-phosphate (M/P) ratio controlled the formation of magnesium potassium phosphate hexahydrate (MgKPO4 center dot 6H(2)O, MKP) for strength development. Low M/P ratios gave ill-formed MKP, whereas high M/P ratios resulted in unreacted magnesia. The optimal IMP ratio of 7 led to a much shorter setting time and greater compatibility with wood waste than for Ordinary Portland cement. Wood waste can provide a platform for cement hydration and porosity for harboring crystalline MKP and also, regulate water release to maintain a moderate MPC reaction. We also highlight the importance of reaction sequence for promoting matrix homogeneity and MKP crystallinity. Our approach enables fast production of value-added construction products from wood waste.
ISSN: 0888-5885
EISSN: 1520-5045
DOI: 10.1021/acs.iecr.7b01175
Appears in Collections:Journal/Magazine Article

View full-text via PolyU eLinks SFX Query
Show full item record


Citations as of May 12, 2018


Last Week
Last month
Citations as of May 20, 2018

Google ScholarTM



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.