Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Solid waste-based foam light soil and preparation method thereof
The invention discloses solid waste-based foam light soil and a preparation method thereof in the technical field of the building industry, the foam light soil is prepared from, by mass, 200-300 parts of raw material soil, 200-300 parts of fly ash, 100-200 parts of slag powder, 250-300 parts of water, 50-100 parts of foam and 10-20 parts of straw, the raw material soil is silty clay dug in construction, the density is 1.77 g/cm < 3 >, the natural water content is 5.2%, the plastic limit is 16.8%, the liquid limit is 27%, and the plastic index is 10.2; the optimal moisture content is 13.2%, the maximum dry density is 2.069 g/cm < 3 >, the fly ash is grade II fly ash, the density is 1.8-2.4 kg/m < 3 >, the specific surface area is 300-500 m < 2 >/kg, the fly ash mainly contains silicon and aluminum elements, the slag powder mainly contains calcium, the fly ash and the slag powder are compounded to generate hydrated calcium silicate and generate strength, waxy substances exist on the surfaces of the wheat straws, fiber bundles exist on the inner surfaces of the wheat straws, and the fiber bundles are uniformly distributed on the surfaces of the wheat straws. And when compounded with a cement base, cement paste is prevented from immersing into the fibers, so that the cement paste and the fibers cannot be well bonded. And the bonding effect of the straw subjected to alkali treatment and the slurry is obviously enhanced.
本发明公开了建筑行业技术领域的一种固废基泡沫轻质土及其制备方法，该泡沫轻质土各原料所占质量份数为：原料土200~300份、粉煤灰200~300份、矿渣粉100~200份、水250~300份、泡沫50~100份、秸秆10~20份，所述原料土为施工中所挖粉质黏土，密度1.77 g/cm3,天然含水量5.2%，塑限16.8%，液限27%，塑性指数10.2，最优含水率13.2%，最大干密度2.069 g/cm3，所述粉煤灰为Ⅱ级粉煤灰，其密度为1.8～2.4 kg/m3，比表面积为300～500 m2/kg，粉煤灰以硅铝元素为主，矿渣粉以钙为主，两者的复合可以生成水化硅酸钙，产生强度，麦秆表面存在蜡状物质，且内表面有纤维束，与水泥基复合时会阻碍水泥浆体浸入纤维内部，导致两者不能较好的粘结。碱处理后的秸秆与浆体的粘结作用显著增强。
Solid waste-based foam light soil and preparation method thereof
The invention discloses solid waste-based foam light soil and a preparation method thereof in the technical field of the building industry, the foam light soil is prepared from, by mass, 200-300 parts of raw material soil, 200-300 parts of fly ash, 100-200 parts of slag powder, 250-300 parts of water, 50-100 parts of foam and 10-20 parts of straw, the raw material soil is silty clay dug in construction, the density is 1.77 g/cm < 3 >, the natural water content is 5.2%, the plastic limit is 16.8%, the liquid limit is 27%, and the plastic index is 10.2; the optimal moisture content is 13.2%, the maximum dry density is 2.069 g/cm < 3 >, the fly ash is grade II fly ash, the density is 1.8-2.4 kg/m < 3 >, the specific surface area is 300-500 m < 2 >/kg, the fly ash mainly contains silicon and aluminum elements, the slag powder mainly contains calcium, the fly ash and the slag powder are compounded to generate hydrated calcium silicate and generate strength, waxy substances exist on the surfaces of the wheat straws, fiber bundles exist on the inner surfaces of the wheat straws, and the fiber bundles are uniformly distributed on the surfaces of the wheat straws. And when compounded with a cement base, cement paste is prevented from immersing into the fibers, so that the cement paste and the fibers cannot be well bonded. And the bonding effect of the straw subjected to alkali treatment and the slurry is obviously enhanced.
本发明公开了建筑行业技术领域的一种固废基泡沫轻质土及其制备方法，该泡沫轻质土各原料所占质量份数为：原料土200~300份、粉煤灰200~300份、矿渣粉100~200份、水250~300份、泡沫50~100份、秸秆10~20份，所述原料土为施工中所挖粉质黏土，密度1.77 g/cm3,天然含水量5.2%，塑限16.8%，液限27%，塑性指数10.2，最优含水率13.2%，最大干密度2.069 g/cm3，所述粉煤灰为Ⅱ级粉煤灰，其密度为1.8～2.4 kg/m3，比表面积为300～500 m2/kg，粉煤灰以硅铝元素为主，矿渣粉以钙为主，两者的复合可以生成水化硅酸钙，产生强度，麦秆表面存在蜡状物质，且内表面有纤维束，与水泥基复合时会阻碍水泥浆体浸入纤维内部，导致两者不能较好的粘结。碱处理后的秸秆与浆体的粘结作用显著增强。
Solid waste-based foam light soil and preparation method thereof
一种固废基泡沫轻质土及其制备方法
HAN YUNSHAN (Autor:in) / CAO YONGCONG (Autor:in) / WANG YUANLONG (Autor:in) / CHENG ZHI (Autor:in) / GUO YAODONG (Autor:in)
09.02.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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