Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Low-shrinkage quick-setting gangue-based alkali-activated quick repair material and preparation method thereof
The invention discloses a low-shrinkage quick-setting gangue-based alkali-activated quick repair material and a preparation method thereof. The alkali-activated quick repair material is prepared from,by mass, 400 to 500 parts of coal gangue, 500 to 600 parts of superfine slag powder, 40 to 50 parts of sodium hydroxide, 200 to 240 parts of industrial water glass, 30 to 70 parts of sulphoaluminatecement and 260 to 300 parts of water. The preparation method comprises the following steps: 1) uniformly mixing sodium hydroxide, industrial water glass and water to obtain an alkaline solution; 2) uniformly mixing coal gangue, mineral powder and sulphoaluminate cement; 3) adding the alkaline solution into the obtained mixture, and stirring to obtain slurry; and 4) pouring the slurry into a mold,removing the mold 1 day later, and carrying out standard maintenance so as to obtain the alkali-activated quick repair material. The alkali-activated quick repair material is compact, reduces the proportion of pores with the size of less than 25 mm, reduces the shrinkage, further improves the compressive strength, and is short in setting time and excellent in comprehensive performance.
本发明公开了一种低收缩快凝结煤矸石基碱激发快速修补材料及其制备方法。该碱激发快速修补材料，按质量份数计，包括以下组分：煤矸石400～500份，矿渣微粉500～600份，氢氧化钠40～50份，工业水玻璃200～240份，硫铝酸盐水泥30～70份，水260～300份。其制备为：1)将氢氧化钠、工业水玻璃和水混合均匀，得碱溶液；2)将煤矸石、矿粉和硫铝酸盐水泥混合均匀；3)将碱溶液加入到混合物料中，搅拌得浆体；4)将浆体倒入模具中，1d后拆模并进行标准养护，即可。该碱激发快速修补材料更加密实，减少了小于25mm的孔的比例，减小了收缩，进一步提升了抗压强度，凝结时间短，综合性能优异。
Low-shrinkage quick-setting gangue-based alkali-activated quick repair material and preparation method thereof
The invention discloses a low-shrinkage quick-setting gangue-based alkali-activated quick repair material and a preparation method thereof. The alkali-activated quick repair material is prepared from,by mass, 400 to 500 parts of coal gangue, 500 to 600 parts of superfine slag powder, 40 to 50 parts of sodium hydroxide, 200 to 240 parts of industrial water glass, 30 to 70 parts of sulphoaluminatecement and 260 to 300 parts of water. The preparation method comprises the following steps: 1) uniformly mixing sodium hydroxide, industrial water glass and water to obtain an alkaline solution; 2) uniformly mixing coal gangue, mineral powder and sulphoaluminate cement; 3) adding the alkaline solution into the obtained mixture, and stirring to obtain slurry; and 4) pouring the slurry into a mold,removing the mold 1 day later, and carrying out standard maintenance so as to obtain the alkali-activated quick repair material. The alkali-activated quick repair material is compact, reduces the proportion of pores with the size of less than 25 mm, reduces the shrinkage, further improves the compressive strength, and is short in setting time and excellent in comprehensive performance.
本发明公开了一种低收缩快凝结煤矸石基碱激发快速修补材料及其制备方法。该碱激发快速修补材料，按质量份数计，包括以下组分：煤矸石400～500份，矿渣微粉500～600份，氢氧化钠40～50份，工业水玻璃200～240份，硫铝酸盐水泥30～70份，水260～300份。其制备为：1)将氢氧化钠、工业水玻璃和水混合均匀，得碱溶液；2)将煤矸石、矿粉和硫铝酸盐水泥混合均匀；3)将碱溶液加入到混合物料中，搅拌得浆体；4)将浆体倒入模具中，1d后拆模并进行标准养护，即可。该碱激发快速修补材料更加密实，减少了小于25mm的孔的比例，减小了收缩，进一步提升了抗压强度，凝结时间短，综合性能优异。
Low-shrinkage quick-setting gangue-based alkali-activated quick repair material and preparation method thereof
一种低收缩快凝结煤矸石基碱激发快速修补材料及其制备方法
SHUI ZHONGHE (Autor:in) / LIU CHAO (Autor:in) / GAO XU (Autor:in)
01.09.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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