石綿, 石灰, ドロマイト, 珪酸質混和材および石膏などを組合せたオートクレープ養生品の強度, 含水率に対応した伸縮, 乾燥速度, について

概要

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This report are discussed for making manifactual Autoclaving board. The sample's proportion are defined by Calcium Index and they are within range 0.05〜1.60, and with the exception of Asbestos 15% constant. The result are follows. 1. Autoclave curing's temperature keeps 180℃ (10.2at) constant, curing time is 8〜20hr. Strength is calculated by law of square density. The max. of strength is within range of Calcium index 0.3〜0.6. Doromite is able to use for Autoclaving board, but are limited in MgO quantity. Gypsum is effective to mix about 2%, specialy to lime-silica-fly ash system. 2. Drying rate of Autoclave curing sample is later than Atomospher curing. This tendency is remerkable at Calcium index 0.7 and below. 3. When sample contain water below about 4% that become second zone of the folling-rate period, length change of Autoclave curing sample is generally larger than Atomospher curing. But over about 4%, the former is smoller than the latter.
社団法人日本建築学会の論文
1965-03-28