Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-fluidity foam concrete and preparation method thereof
The invention belongs to the field of foam concrete, and particularly discloses high-fluidity foam concrete and a preparation method thereof. The high-fluidity foam concrete comprises cement, fly ash, slag, ground powder, silica fume, a water reducing agent, a foam stabilizer, a foaming agent and water. The water reducing agent is a composite water reducing agent of a phosphorus-containing monomer and has the effects of reducing viscosity and improving strength; the ground powder is limestone powder and can be used for filling cement gaps together with other powdery admixtures, so that the fluidity is improved; the preparation method comprises the following steps: stirring cement, fly ash and other powdery materials to obtain a dry mixture, adding the water reducer and water, continuously stirring to obtain an initial mixture, adding foam which is formed by a foaming machine and accounts for 20-30% of the total volume into the initial mixture, stirring at a low speed for a period of time, adding the remaining foam, stirring at a high speed, finally injecting into a mold, and molding to obtain the concrete. The high-fluidity foam concrete is obtained. The foam concrete prepared by the invention has the advantages of full slurry, high fluidity and high strength.
本申请属于泡沫混凝土领域，具体公开了一种高流动度泡沫混凝土及其制备方法。高流动度泡沫混凝土包括水泥、粉煤灰、矿渣、磨细粉、硅灰、减水剂、稳泡剂、发泡剂、水；减水剂为含磷单体的复合减水剂，有降低粘度，提高强度的作用；磨细粉为石灰石粉，可与其它粉状掺合料共同填充水泥间隙，提高流动度；其制备方法为：将水泥、粉煤灰等粉状材料搅拌得到干混合料，再加入减水剂、水继续搅拌得到初混合料，然后将经由发泡机形成的占总体积分数20‑30％的泡沫加入初混合料低速搅拌一段时间后，将剩余泡沫加入高速搅拌，最后注入模具，得高流动度泡沫混凝土。本发明制得的泡沫混凝土具有浆体饱满、流动度大且强度高的优点。
High-fluidity foam concrete and preparation method thereof
The invention belongs to the field of foam concrete, and particularly discloses high-fluidity foam concrete and a preparation method thereof. The high-fluidity foam concrete comprises cement, fly ash, slag, ground powder, silica fume, a water reducing agent, a foam stabilizer, a foaming agent and water. The water reducing agent is a composite water reducing agent of a phosphorus-containing monomer and has the effects of reducing viscosity and improving strength; the ground powder is limestone powder and can be used for filling cement gaps together with other powdery admixtures, so that the fluidity is improved; the preparation method comprises the following steps: stirring cement, fly ash and other powdery materials to obtain a dry mixture, adding the water reducer and water, continuously stirring to obtain an initial mixture, adding foam which is formed by a foaming machine and accounts for 20-30% of the total volume into the initial mixture, stirring at a low speed for a period of time, adding the remaining foam, stirring at a high speed, finally injecting into a mold, and molding to obtain the concrete. The high-fluidity foam concrete is obtained. The foam concrete prepared by the invention has the advantages of full slurry, high fluidity and high strength.
本申请属于泡沫混凝土领域，具体公开了一种高流动度泡沫混凝土及其制备方法。高流动度泡沫混凝土包括水泥、粉煤灰、矿渣、磨细粉、硅灰、减水剂、稳泡剂、发泡剂、水；减水剂为含磷单体的复合减水剂，有降低粘度，提高强度的作用；磨细粉为石灰石粉，可与其它粉状掺合料共同填充水泥间隙，提高流动度；其制备方法为：将水泥、粉煤灰等粉状材料搅拌得到干混合料，再加入减水剂、水继续搅拌得到初混合料，然后将经由发泡机形成的占总体积分数20‑30％的泡沫加入初混合料低速搅拌一段时间后，将剩余泡沫加入高速搅拌，最后注入模具，得高流动度泡沫混凝土。本发明制得的泡沫混凝土具有浆体饱满、流动度大且强度高的优点。
High-fluidity foam concrete and preparation method thereof
一种高流动度泡沫混凝土及其制备方法
LI CHUNBAO (Autor:in) / LI XIAOTIAN (Autor:in) / HAN MENGXIN (Autor:in) / ZHANG JIANHUA (Autor:in) / LIU XIAOHUI (Autor:in) / SONG HAIFENG (Autor:in) / YIN ZHIJIE (Autor:in) / XIAO CHANG (Autor:in) / CONG ZIQIN (Autor:in) / ZHAO DONGMEI (Autor:in)
23.06.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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