Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Early-strength desulfurization ash-based concrete and preparation method thereof
The invention relates to early-strength desulfurization ash-based concrete and a preparation method thereof. The concrete is prepared from the following components in percentage by mass: 15 to 20 percent of cementing material, 45 to 52 percent of coarse aggregate, 25 to 35 percent of sand and mixing water, wherein the water-binder ratio is 0.35 to 0.40; the cementing material comprises the following components in percentage by mass: 5-10% of desulfurized fly ash, 75-90% of slag powder, 1-2% of an additive and 2-10% of an alkaline additive, wherein the desulfurized fly ash is subjected to aging pretreatment. The desulfurization ash is pretreated, the influence of poor gelling performance and hydration cementing performance caused by ammonium salt and ammonia water in the desulfurization ash can be eliminated, the performance of the gelling material is improved, the desulfurization ash-based concrete is prepared from the gelling material, the coarse aggregate and the sand, the performance of the concrete is improved, industrial solid waste can be fully utilized, and the production cost is reduced. Environmental hazards caused by industrial solid wastes are reduced, resource utilization is realized, and the economic efficiency is improved.
本发明涉及一种早强型脱硫灰基混凝土及其制备方法；所述混凝土包括按质量百分比计的15～20％胶凝材料、45～52％粗骨料、25～35％砂以及拌合水，其中水胶比为0.35～0.40；所述胶凝材料包括按质量百分比计的5～10％脱硫灰、75～90％料渣粉、1～2％外加剂以及2～10％碱性添加剂，其中所述脱硫灰经陈化预处理。本发明对脱硫灰进行预处理，可消除脱硫灰中铵盐及氨水造成胶凝性能、水化胶结性能差的影响，提高胶凝材料的性能，通过胶凝材料与粗骨料以及砂制备脱硫灰基混凝土，在提高混凝土性能的同时，可充分利用工业固废，减少工业固废带来的环境危害，进行资源化利用，提高经济效率。
Early-strength desulfurization ash-based concrete and preparation method thereof
The invention relates to early-strength desulfurization ash-based concrete and a preparation method thereof. The concrete is prepared from the following components in percentage by mass: 15 to 20 percent of cementing material, 45 to 52 percent of coarse aggregate, 25 to 35 percent of sand and mixing water, wherein the water-binder ratio is 0.35 to 0.40; the cementing material comprises the following components in percentage by mass: 5-10% of desulfurized fly ash, 75-90% of slag powder, 1-2% of an additive and 2-10% of an alkaline additive, wherein the desulfurized fly ash is subjected to aging pretreatment. The desulfurization ash is pretreated, the influence of poor gelling performance and hydration cementing performance caused by ammonium salt and ammonia water in the desulfurization ash can be eliminated, the performance of the gelling material is improved, the desulfurization ash-based concrete is prepared from the gelling material, the coarse aggregate and the sand, the performance of the concrete is improved, industrial solid waste can be fully utilized, and the production cost is reduced. Environmental hazards caused by industrial solid wastes are reduced, resource utilization is realized, and the economic efficiency is improved.
本发明涉及一种早强型脱硫灰基混凝土及其制备方法；所述混凝土包括按质量百分比计的15～20％胶凝材料、45～52％粗骨料、25～35％砂以及拌合水，其中水胶比为0.35～0.40；所述胶凝材料包括按质量百分比计的5～10％脱硫灰、75～90％料渣粉、1～2％外加剂以及2～10％碱性添加剂，其中所述脱硫灰经陈化预处理。本发明对脱硫灰进行预处理，可消除脱硫灰中铵盐及氨水造成胶凝性能、水化胶结性能差的影响，提高胶凝材料的性能，通过胶凝材料与粗骨料以及砂制备脱硫灰基混凝土，在提高混凝土性能的同时，可充分利用工业固废，减少工业固废带来的环境危害，进行资源化利用，提高经济效率。
Early-strength desulfurization ash-based concrete and preparation method thereof
一种早强型脱硫灰基混凝土及其制备方法
JIANG MINGMING (Autor:in) / XIONG JINGCHAO (Autor:in) / SHAO YAN (Autor:in) / GUO HUAJUN (Autor:in) / HAO DONGDONG (Autor:in) / CHEN KUN (Autor:in) / LIU ZIHAO (Autor:in) / XIANG HAO (Autor:in) / XIA YANG (Autor:in)
29.12.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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