Open AccessStudy on application of gypsum-based self-leveling mortar in floor heating backfill
Author(s) -
Jixiu Zhang,
Ye Zhang,
Jikang Liu,
Yuanchao Miao,
Saihong Duan
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/780/4/042010
Subject(s) - gypsum , mortar , materials science , geotechnical engineering , thermal conductivity , flue gas desulfurization , thermal expansion , composite material , geology , engineering , waste management
In this paper, gypsum-based self-leveling mortar is prepared by using desulfurization gypsum-based α-high strength gypsum as the main cementing material, and it is applied to the floor heating backfill. Comparing with cement-based self-leveling mortar, the thermal conductivity coefficient, thermal expansion coefficient, elastic modulus and other performance indexes of gypsum-based self-leveling mortar are studied. The results show that the gypsum- based self-leveling mortar prepared based on α-high strength gypsum has high strength and heat conduction. Good physical performance, good volume stability, low thermal expansion rate are suitable for floor heating. The application of the gypsum-based self-leveling mortar in the floor heating project shows that the gypsum-based self-leveling mortar can simplify the construction process and shorten construction time.