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A platform for research: civil engineering, architecture and urbanism
Preparation method of early-strength ardealite expansive mortar
The invention relates to the field of mortar, and particularly discloses a preparation method of early-strength ardealite expansion mortar, which is characterized by comprising the following steps: 1,high-temperature physical shaping: sending ardealite into airflow shaping equipment for high-temperature physical shaping to obtain gelled gypsum with equiaxed crystal grains, wherein airflow of theairflow shaping equipment is one of steam or flue gas, the airflow temperature is 400-1000 DEG C, the shaping time is 10-120 seconds, and the length-diameter ratio, the length-width ratio or the length-thickness ratio of the gelled gypsum crystal grains are all smaller than 2.0; and 2, adding a flow aid, active micro powder, a calcium material, an expanding agent, a surfactant and a stabilizer into the gelled gypsum, uniformly mixing, adding water, and uniformly stirring to obtain the early-strength ardealite expansion mortar. The mortar prepared by the method is high in fluidity, early strength and constructability, the mortar is slightly expanded, and shrinkage cracking of the mortar is reduced.
本申请涉及砂浆的领域，具体公开了一种早强磷石膏膨胀砂浆的制备方法，其特征在于，包括以下步骤：步骤一，高温物理整形：将磷石膏送入气流整形设备中进行高温物理整形，气流整形设备的气流为蒸汽或烟气中的一种，气流温度为400‑1000℃，整形时间为10‑120s，得到等轴状晶粒的胶凝石膏；胶凝石膏晶粒长径比、长宽比或长厚比均小于2.0；步骤二，在胶凝石膏中加入助流剂、活性微粉、钙质料、膨胀剂、表面剂、稳定剂，混合均匀后，加水搅拌均匀得到早强磷石膏膨胀砂浆。通过本申请制得的砂浆流动度好，早期强度高，施工性好，砂浆微膨胀，减少砂浆收缩开裂。
Preparation method of early-strength ardealite expansive mortar
The invention relates to the field of mortar, and particularly discloses a preparation method of early-strength ardealite expansion mortar, which is characterized by comprising the following steps: 1,high-temperature physical shaping: sending ardealite into airflow shaping equipment for high-temperature physical shaping to obtain gelled gypsum with equiaxed crystal grains, wherein airflow of theairflow shaping equipment is one of steam or flue gas, the airflow temperature is 400-1000 DEG C, the shaping time is 10-120 seconds, and the length-diameter ratio, the length-width ratio or the length-thickness ratio of the gelled gypsum crystal grains are all smaller than 2.0; and 2, adding a flow aid, active micro powder, a calcium material, an expanding agent, a surfactant and a stabilizer into the gelled gypsum, uniformly mixing, adding water, and uniformly stirring to obtain the early-strength ardealite expansion mortar. The mortar prepared by the method is high in fluidity, early strength and constructability, the mortar is slightly expanded, and shrinkage cracking of the mortar is reduced.
本申请涉及砂浆的领域，具体公开了一种早强磷石膏膨胀砂浆的制备方法，其特征在于，包括以下步骤：步骤一，高温物理整形：将磷石膏送入气流整形设备中进行高温物理整形，气流整形设备的气流为蒸汽或烟气中的一种，气流温度为400‑1000℃，整形时间为10‑120s，得到等轴状晶粒的胶凝石膏；胶凝石膏晶粒长径比、长宽比或长厚比均小于2.0；步骤二，在胶凝石膏中加入助流剂、活性微粉、钙质料、膨胀剂、表面剂、稳定剂，混合均匀后，加水搅拌均匀得到早强磷石膏膨胀砂浆。通过本申请制得的砂浆流动度好，早期强度高，施工性好，砂浆微膨胀，减少砂浆收缩开裂。
Preparation method of early-strength ardealite expansive mortar
一种早强磷石膏膨胀砂浆的制备方法
ZHANG JIE (author) / HE DELIANG (author) / LUO XIAODONG (author) / WU WEI (author) / PENG BINGJIE (author) / ZHU JINHUA (author) / TAN HONGBIN (author) / MA XIAOLING (author) / YANG FEIHUA (author) / WANG JIN (author)
2021-04-02
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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