TH5779B - Lightweight insulating panels and the process for producing them - Google Patents

Abstract

Lightweight insulation panels According to this invention consists of Cement Portland. Fibers and fillers, including a) 50-75% cement by weight b) 0-5% cellulose fiber by weight c) 0.5-4% alkali resistant fiber material d) Mica 5-20% wt. E) light additive, 5-20% wt. By weight f) hydrated lime, 8-25% wt., Suspended solids form a sheet and freeze for at least 15%. Days and to be done for 28 days The insulating panels of this invention meet the requirements set for a material that is rigid to bend. And the non-burning and the like

Claims (7)

1.Lightweight, asbestos-free insulating board consisting of hydraulically hardened Portland cement, fibers and additives, the composition can be distinguished as follows: a) 50-75% cement by weight b) 0-5% cellulose fiber. C) Fibrous material 0.5-4% by weight d) 5-20% mica by weight e) light additive 5-20% by weight f) hydrated lime 8-25% By weight 2. Insulating panels according to claim 1 can be classified as follows: a) 55-65% cement by weight b) 2-4% cellulose fiber by weight c) Fibrous material 0.8-1.5% by weight. d) 10-15% mica by weight e) Light additive 8-18% by weight f) hydrated lime 10-18% wt. 3. Insulating sheet according to claim 1 or item 2, any one can be distinguished as The alkali resistant fiber material used can be polyvinyl alcohol (PVA), polyacrylonitrile (PAN) and polymer in the proportion of 0.8 -2% by weight, or as coated glass fibers. To tolerate alkalis in the proportion of 1-4 percent by weight or as a mixture of these substances. 4. The insulation sheet according to claims 1 to 3, one can distinguish that the lightweight additive used can be Perlite, puffed clay, clusters of synthetic spherical sonolite bottoms or crushed foam concrete. Or a mixture of these substances 5. The process for producing asbestos-free lightweight insulating panels consisting of hydraulically hardened Portland cement, fibers and additives can be distinguished from the following elements: a) 50-75% cement and popular 55-65 by weight b) cellulose fiber 0-5% and popular 2-4% by weight c) 0.5-4% alkali resistant fiber material and 0.8-1.5% popular by weight d) hundred mica 5-20% and popular 10-15% by weight e) light additive 5-20% by weight f) 8-25% hydrated lime and 10-18% popular by weight are mixed. Together with the amount of water that is more than enough. Excess water was removed in a known method during shearing of the insulating compound. And the mixtures were left to harden under a humid atmosphere for at least 15 days and preferred for 28 days. 6. The movement according to claim No. 5 can be distinguished that The alkali resistant fiber material used can be Polyvinyl alcohol (PVA), polyacrylonitrile (PAN) and polyamide In the proportion of 1-4 percent by weight or as a glass fiber coated to resist alkali in The proportion of 1-4 percent by weight or as a mixture of these substances. 7. The movement according to claim No. 5 or No. 6, any one can be distinguished as The lightweight additives used can be perlite, puffed clay, clusters of synthetic spherical sinoblocks or crushed foam concrete. Or a mixture of these substances