Hollow vitrified micro bubbles heat preservation and insulation composite material
A technology of vitrified microbeads and thermal insulation, applied in the field of building materials, can solve the problems of complex construction process, easy falling off of foam board, poor thermal insulation performance, etc., and achieve the effect of simple construction process, smooth luster and long service life
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[0012] The hollow vitrified microbead thermal insulation composite material of the present invention includes vitrified microbeads and a cementitious material. The cementitious material is a mixture of cement, sand, foaming agent and water repellent, wherein the sand is natural river sand or quartz Sand and vitrified microbeads are used as lightweight aggregates of mixed mortar and mixed into the cementitious material. The amounts of each substance contained in the composite material of this embodiment are: 43 kg of vitrified beads, 53 kg of cement, 3.05 parts of sand, and appropriate amounts of foaming agent and waterproofing agent. The physical indicators of the vitrified microbeads are:
[0013] performance unit index granularity Mm 0.5-1.5 Bulk density Kg / m 3 50-200 Thermal Conductivity w / m.k 0.028-0.05 Cylinder compressive strength Determination of% by vacuum filtration method 20-50 Ball formation rate Volume loss at 1Mpa p...
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