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A platform for research: civil engineering, architecture and urbanism
Dry preparation method and application of starch-based cement hydration heat release regulation and control material
The invention belongs to the technical field of chemical admixtures of building materials, and particularly discloses a dry preparation method for preparing a cement hydration heat release regulation and control material from starch. According to the dry-method preparation method, starch and boric acid are adopted to prepare the starch-based cement hydration heat release regulating and controlling material through catalytic hydrolysis of starch by inorganic acid under the condition of high temperature and no solvent. The problems that the production efficiency and the equipment utilization rate are low due to the contradiction between the hydration heat regulation and control effect of dextrin and the hydrolysis rate of starch are solved, meanwhile, the problem that the setting time of cement concrete is prolonged due to small-molecule carbohydrates is solved, a separation process is omitted, the production efficiency is further improved, and the production cost is reduced. And the cost performance is improved. The invention also discloses an application of the starch-based cement hydration heat release regulation and control material prepared by the dry preparation method in cement materials. The starch-based cement hydration heat release regulation and control material is especially suitable for expansive concrete doped with calcium, magnesium or calcium-magnesium expansive materials.
本发明属于建筑材料化学外加剂技术领域，尤其公开了一种采用淀粉来制备水泥水化放热调控材料的干法制备方法。该干法制备方法采用淀粉和硼酸在高温无溶剂条件下、经无机酸催化水解淀粉来制备淀粉基水泥水化放热调控材料，与传统的湿法水解淀粉的制备方法相比，不仅解决了因糊精的水化热调控效果与淀粉的水解速率的矛盾而导致的生产效率和设备利用率低下的问题，同时解决了小分子糖类化合物对水泥混凝土造成的凝结时间延长问题，且还取消了分离工艺，进一步提升了生产效率，提高了性价比。本发明还公开了经上述干法制备方法制备获得的淀粉基水泥水化放热调控材料在水泥材料中的应用，其尤其适用于掺加了钙类、镁类或钙镁类膨胀材料的膨胀混凝土。
Dry preparation method and application of starch-based cement hydration heat release regulation and control material
The invention belongs to the technical field of chemical admixtures of building materials, and particularly discloses a dry preparation method for preparing a cement hydration heat release regulation and control material from starch. According to the dry-method preparation method, starch and boric acid are adopted to prepare the starch-based cement hydration heat release regulating and controlling material through catalytic hydrolysis of starch by inorganic acid under the condition of high temperature and no solvent. The problems that the production efficiency and the equipment utilization rate are low due to the contradiction between the hydration heat regulation and control effect of dextrin and the hydrolysis rate of starch are solved, meanwhile, the problem that the setting time of cement concrete is prolonged due to small-molecule carbohydrates is solved, a separation process is omitted, the production efficiency is further improved, and the production cost is reduced. And the cost performance is improved. The invention also discloses an application of the starch-based cement hydration heat release regulation and control material prepared by the dry preparation method in cement materials. The starch-based cement hydration heat release regulation and control material is especially suitable for expansive concrete doped with calcium, magnesium or calcium-magnesium expansive materials.
本发明属于建筑材料化学外加剂技术领域，尤其公开了一种采用淀粉来制备水泥水化放热调控材料的干法制备方法。该干法制备方法采用淀粉和硼酸在高温无溶剂条件下、经无机酸催化水解淀粉来制备淀粉基水泥水化放热调控材料，与传统的湿法水解淀粉的制备方法相比，不仅解决了因糊精的水化热调控效果与淀粉的水解速率的矛盾而导致的生产效率和设备利用率低下的问题，同时解决了小分子糖类化合物对水泥混凝土造成的凝结时间延长问题，且还取消了分离工艺，进一步提升了生产效率，提高了性价比。本发明还公开了经上述干法制备方法制备获得的淀粉基水泥水化放热调控材料在水泥材料中的应用，其尤其适用于掺加了钙类、镁类或钙镁类膨胀材料的膨胀混凝土。
Dry preparation method and application of starch-based cement hydration heat release regulation and control material
淀粉基水泥水化放热调控材料的干法制备方法及其应用
WANG RUI (author) / CHU YANG (author) / WANG WENBIN (author) / ZHANG SHOUZHI (author) / TIAN QIAN (author) / WANG YUJIANG (author)
2024-03-08
Patent
Electronic Resource
Chinese
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