YNB系列混凝土泵送剂的研制与应用

本文介绍了YNB系列泵送剂及其混凝土拌合物的性能,分析了泵送剂不同掺量对混凝土抗压强度的影响和对不同品种水泥混凝土的适应性;其硬化混凝土的抗拉、抗折、长值强度以及抗渗性、抗冻融性等等都得到大幅度提高,并明显地改善了混凝土拌合物的和易性能,大大提高了混凝土的可泵性能。工程应用表明,一次泵送垂直高度可达100m以上。

DEVELOPMENT AND APPLICATION OF A SERIES OF YNB PUMPING AGENTS FOR CONCRETE

This paper introduces the properties of YNB pumping concrete agents and mixed concrete, andanalyses the effect of different amount of pumping agents on compressive strength, the adaptability of itto concretes made of various types of cement, The mechanical properties and durability of concretewith YNB pumping agents will be improved or increased, and the workability will be obviously im-proved, thus the pumpability will be greatly increased. The engineering tests indicate that the verticalpumping height of concrete at a time will get up more than 100m.