混凝土应用中的认识误区及其解决方法

工程项目管理人员与商品混凝土公司的技术生产人员,对混凝土生产、使用存在部分认识卜的误区,例如:混凝土中石子少、粒径小更适合泵送;可以用矿渣粉代替矿渣水泥,减少大体积混凝士水化热;高水泥用量可以配制出高强度混凝土;低强度等级混凝土不能泵送等.针对此,提出一些建议性措施,提高上程人员对混凝土的正确认识,如:不能仅靠提高水泥用量配制高强混凝土,低强混凝土也可以泵送,泵送混凝土应充分考虑石子用量、粒径和级配等.

Misunderstanding and Solving Methods of Concrete Application

Misunderstanding usually occurs in concrete production and application,such as it is considered that less pebble and smaller particle size for concrete are suitable for pumping,the slag cement can be instead of slag powder to decrease the hydration heat of mass concrete,more cement is required for high strength concrete,and low strength concrete can not be pumped,and so on. Based on these misunderstandings,some suggestive methods are put forward to improve the understanding of concrete,such as adding more c...