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1981年10月下旬,山四川省建设厅主持,在成都市召开了“小型蒸养煤渣空心砌块”与“小型轻质水泥煤渣空心砌块”科研成果技术鉴定会。两种小型煤渣砌块先后于1978年和1980年开始研制。由于采取了科研、设计、生产与应用单位四结合的组织形式,进度较快,科研成果质量较好。小型蒸养煤渣空心砌块采用干、湿热隧道窑脱模养护新工艺,取得成功,效果较好。可以生产35、50、75号(均系
In late October 1981, the Sichuan Provincial Department of Construction presided over a technical appraisal meeting for scientific research achievements in small steamed coal cinder hollow blocks and small lightweight cement cinder hollow blocks in Chengdu. Two small cinder blocks were first developed in 1978 and 1980. As a result of adopting the organizational form of scientific research, design, production and application units, the progress is fast and the research results are of good quality. Small-scale steamed coal-residue slag hollow block adopts dry, hot and humid tunnel kiln stripping and curing new technology, and has achieved success with good results. Can produce 35, 50, 75 numbers (all