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提出了生物污泥陶粒加气混凝土砌块生命周期CO_2排放量计算模型与公式,计算了烧结淤泥页岩陶粒生产阶段CO_2排放因子和陶粒加气混凝土生命周期CO_2排放量,为反映生物污泥陶粒加气混凝土砌块的CO_2排放水平,将计算结果同粉煤灰加气混凝土砌块、烧结普通砖和烧结空心砖碳排放进行了比较,数据表明,A3.5、B06和A5.0、B07级生物污泥陶粒加气混凝土砌块生命周期CO_2排放量分别为449.15和437.90 kg CO_2/m~3,A5.0、B07级外墙砌块碳排放量较粉煤灰加气混凝土砌块和烧结空心砖分别升高了45%和36%,而与烧结普通砖相比则减少了10%。生物污泥陶粒加气混凝土砌块碳排放量远高于粉煤灰加气混凝土砌块和烧结空心砖是由于大量使用了陶粒这一高碳排放原料,因此,若想降低其碳排放,可从降低陶粒生产碳排放入手。
The calculation model and formula of life cycle CO 2 emission of bio-sludge ceramsite aerated concrete block are put forward. CO 2 emission factor and life cycle CO 2 emission of ceramsite aerated concrete in sintering silt shale production stage are calculated. The CO 2 emission levels of sludge ceramsite aerated concrete block are compared with those of fly ash aerated concrete block, sintered common brick and sintered hollow brick. The data show that A3.5, B06 and A5. 0, CO 2 emissions of B07 biological sludge ceramsite aerated concrete blocks are 449.15 and 437.90 kg CO 2 / m ~ 3, respectively. The carbon emission of external wall blocks of buildings A5.0 and B07 is higher than that of fly ash aeration Concrete blocks and sintered hollow bricks were increased by 45% and 36%, respectively, compared with ordinary brick sintered reduced by 10%. Bio-sludge ceramsite aerated concrete block carbon emissions much higher than fly ash aerated concrete blocks and sintered hollow brick is due to the large use of ceramsite, a high-carbon raw materials, so if you want to reduce its carbon emissions, Starting from reducing the production of carbon emissions of ceramsite.