Analysis on carbon emission for biological sewage sludge ceramsite aerated concrete block based on life cycle assessment
ZHOU Yue
GE Jian
LU Jiang
Abstract：This paper established the calculation model and formulas about carbon emission of ceramsite aerated concrete block based on life cycle assessment and calculated the carbon dioxide emission factor of fired sewage sludge shale ceramsite of its production stages and sewage sludge ceramsite aerated concrete block of its lifecycle.In order to reflect the emission levels of sewage sludge ceramsite aerated concrete block,compared the result among autoclaved fly ash aerated concrete block,sintered common brick and fired hollow brick.The result showed,the life cycle carbon dioxide emission of A3.5,B06 and A5.0,B07 sewage sludge ceramsite aerated concrete block was 449.15 and 437.90 kgCO2/m3.The carbon dioxide emission of outer wall block A5.0,B07 was 45％ and 36％ higher than autoclaved fly ash aerated concrete block and fired hollow brick,while 10％ lower than sintered common brick.The carbon dioxide emission of sewage sludge ceramsite aerated concrete block was much higher than autoclaved fly ash aerated concrete block and fired hollow brick because of the extensive use of ceramsite,which is carbon-intensive materiel,therefore if we can reduce carbon dioxide emission of ceramsite so that to decline its carbon dioxide emission.
Keywords：ceramsite aerated concrete blockbiological sewage sludge ceramsitelife cyclecarbon emission
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 34-38,51 )