文章基本信息

标题：The properties of concrete mixes, pumped over long distances
本地全文：下载
作者：Viktor Sopov ; Viktor Sopov ; Viktor Dolgiy 等
期刊名称：MATEC Web of Conferences
电子版ISSN：2261-236X
出版年度：2017
卷号：116
页码：1-7
DOI：10.1051/matecconf/201711601017
语种：English
出版社：EDP Sciences
摘要：The influence of technological factors, chemical and mineral admixtures on pumping and thixotropic properties of concrete mixtures was studied. The causes of the loss of pressure when pumping concrete mixtures through channels of a complex section are established. Existing methods for calculating pressure loss during pumping of concrete mixtures are considered. Some results of pumping tests of modern concrete mixtures are given. It is shown that the use of powdered concrete with high mobility for pumping over long distances during the filling of long-span metal or bridge structures, concreting in tunnels where injection pressure is limited, can be the only solution in the implementation of these tasks.