CAJ | 학술논문

利用X射线荧光光谱仪、XRD等检测手段对循环流化床粉煤灰进行化学成分定性和定量分析,然后确定其质量配合比:粉煤灰65%,水泥12%,石灰20%,石膏3%.主要研究了在蒸压养护条件下,不同水料比、不同铝粉添加量、不同无机添加剂硫酸钠、氯化钙添加量对加气混凝土砌块容重和强度的影响,研究发现最佳水料比为0.65,最佳铝粉掺量为0.1%,无机添加剂硫酸钠对加气混凝土砌块的容重和强度影响不大,而添加0.25%的氯化钙比无添加剂条件下强度提高了40%,达到4.55 MPa,容重为900 kg/m3,随着氯化钙量的增加,强度反而下降.
이용X사선형광광보의、XRD등검측수단대순배류화상분매회진행화학성분정성화정량분석,연후학정기질량배합비:분매회65%,수니12%,석회20%,석고3%.주요연구료재증압양호조건하,불동수료비、불동려분첨가량、불동무궤첨가제류산납、록화개첨가량대가기혼응토체괴용중화강도적영향,연구발현최가수료비위0.65,최가려분참량위0.1%,무궤첨가제류산납대가기혼응토체괴적용중화강도영향불대,이첨가0.25%적록화개비무첨가제조건하강도제고료40%,체도4.55 MPa,용중위900 kg/m3,수착록화개량적증가,강도반이하강.
In this article, chemical compositions of circulating fluidized bed fly ash were gualitative and guantitative analyzed by using X-ray fluorescence spectrometry and X-ray diffraction, then determined the suitable match ratio: fly ash 65%, cement 12%, lime 20%, gypsum 3%. Primarily studied on autoclaved condition, the effects of different amounts of water-binder ratio, AI powder addi-tion, inorganic admixture (sodium sulphate, calcium chloride) addition on volume weight and compression strength. The result show that the best water-binder ratio was 0.65, the best Al powder addition was 0.1%, sodium sulphate was less effect on volume weight and compression strength of aerated concrete, however compare with non-admixture, compression strength raised by 40% while adding 0.25% calcium chloride, it reached 4.55 MPa and 900 kg/m3, with increasing of addition of calcium chloride, the compression strength of aerated concrete decrease.