TY - JOUR
T1 - The effects of sand washing waste and microwave curing on the dimensional stability of epoxy mortar
AU - Rajeshwar, B. K.
AU - Molla Yemam, Dinberu
AU - Jang, Indong
AU - Yi, Chongku
N1 - Funding Information:
This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT & Future Planning (No. 2015R1D1A1A01060892 ). In addition, this study was supported by a Korea University Grant.
Publisher Copyright:
© 2020
PY - 2020/7/30
Y1 - 2020/7/30
N2 - Sand washing waste (SWW), a by-product of the aggregate production process, consists of microfine particles and has limited practical applications in cement composites. In this study, SWW was considered as a potential filler for epoxy mortars. The effect of SWW on the dimensional stability of epoxy mortar specimens was investigated in terms of linear shrinkage and coefficient of thermal expansion (CTE). In addition, the effects of curing methods (open air and microwave) on the dimensional stability of epoxy mortar were assessed. The open air-cured specimens containing an optimum level of SWW exhibited improved dimensional stability compared to pure epoxy; however, increasing the content of the SWW in epoxy mortar led to increased shrinkage. It was also noted that microwave-cured specimens had lower shrinkage, as well as expansion, in comparison to open air-cured specimens.
AB - Sand washing waste (SWW), a by-product of the aggregate production process, consists of microfine particles and has limited practical applications in cement composites. In this study, SWW was considered as a potential filler for epoxy mortars. The effect of SWW on the dimensional stability of epoxy mortar specimens was investigated in terms of linear shrinkage and coefficient of thermal expansion (CTE). In addition, the effects of curing methods (open air and microwave) on the dimensional stability of epoxy mortar were assessed. The open air-cured specimens containing an optimum level of SWW exhibited improved dimensional stability compared to pure epoxy; however, increasing the content of the SWW in epoxy mortar led to increased shrinkage. It was also noted that microwave-cured specimens had lower shrinkage, as well as expansion, in comparison to open air-cured specimens.
KW - Dimensional stability
KW - Epoxy resin mortar
KW - Microwave curing
KW - Sand washing waste (SWW)
UR - http://www.scopus.com/inward/record.url?scp=85082876174&partnerID=8YFLogxK
U2 - 10.1016/j.conbuildmat.2020.118892
DO - 10.1016/j.conbuildmat.2020.118892
M3 - Article
AN - SCOPUS:85082876174
SN - 0950-0618
VL - 250
JO - Construction and Building Materials
JF - Construction and Building Materials
M1 - 118892
ER -