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- Title
颗粒状炉渣掺量对加气混凝土砌块 性能的影响.
- Authors
吴世康; 季韬; 张彬彬; 王钊; 张文
- Abstract
In order to study the effect of granular furnace slag content on the performance of aerated concrete blocks (PT blocks), the diffusion degree, dry density and compressive strength of PT blocks were tested. The mechanism was revealed by XRD, SEM and pore structure analysis methods. The study showed that with the increase of granular furnace slag content, the diffusion degree of PT blocks increased, and the dry density first decreased and then increased. When the content was less than 20%, the granular furnace slag acted as a crystal nucleus, the hydration space increased, and the hydration was more completely. The increase of tobermorite and C-S-H products play a leading role in the strength, and the compressive strength increased. When the content was in the range from 20% to 30%, the mortar diffusion degree was high, the thickening speed of the mortar was less than the gassing speed, resulting in a large number of bubbles on the surface of the mortar, the uniform pore structure was damaged, and the compressive strength decreased. When the content was more than 30%, The mortar collapses, the dry density increased and the compressive strength increased. The compressive strength and dry density of PT block with 20% granular furnace slag was 5.61 MPa and 605 kg/m3 respectively, which met the requirement of A5.0, B06 in the national standard "Autoclaved Aerated Concrete Block" GB/T 11968--2020.
- Publication
New Building Materials / Xinxing Jianzhu Cailiao, 2021, Issue 12, p181
- ISSN
1001-702X
- Publication type
Article