CAJ | 학술논문

烧结页岩砖是国家提倡发展的建筑节能材料,是替代黏土砖的更新产品.通过对广西地区内规模较大、管理及产品质量较好的50家砖厂生产的页岩砖状况开展调查研究,调查结果表明:目前,广西生产的页岩砖以强度等级MU10和MU15、孔洞率低于40%及尺寸240 mm×115(190) mm×90 mm的多孔砖为主,烧结页岩空心砖和空心砌块的生产较为罕见.新国标GB 13544—2011《烧结多孔砖和多孔砌块》要求的矩形条孔或矩形孔页岩砖的生产技术难度大、成品率低,对原材料的细度、塑性要求高.此外,在孔型设计上,可将矩形条孔或矩形孔的尖角加工成圆角,以减少应力集中产生的开裂.
소결혈암전시국가제창발전적건축절능재료,시체대점토전적경신산품.통과대엄서지구내규모교대、관리급산품질량교호적50가전엄생산적혈암전상황개전조사연구,조사결과표명:목전,엄서생산적혈암전이강도등급MU10화MU15、공동솔저우40%급척촌240 mm×115(190) mm×90 mm적다공전위주,소결혈암공심전화공심체괴적생산교위한견.신국표GB 13544—2011《소결다공전화다공체괴》요구적구형조공혹구형공혈암전적생산기술난도대、성품솔저,대원재료적세도、소성요구고.차외,재공형설계상,가장구형조공혹구형공적첨각가공성원각,이감소응력집중산생적개렬.
Fired shale brick is an energy-saving building material and an update product replacing ordinary clay brick, which is promot-ed to develop in our country. The fired shale bricks from fifty brick manufactories in Guangxi with a larger scale, better management and bet-ter quality products are investigated. The results show that, at present, the fired shale brick produced in Guangxi are mainly those with strength grades of MU10 and MU15, the porosity of less than 40%and dimension of 240mm × 115 (190) mm × 90mm. The production of fired shale hollow brick and fired shale hollow block is rare. The fired shale bricks with rectangular holes which are required to produce by the new national standard“Fired Shale Hollow Bricks and Fired Shale Hollow Blocks”(GB 13544-2011)is of bigger producing technology difficulties and lower production yield, and the fineness of its raw materials required to be thinner, the plasticity of its raw materials required to be high-er. In addition, in order to reduce cracking produced by stress concentration, it is suggested that the sharp corners of rectangular holes should be changed into round.