本报告描述了用于运输和浇筑混凝土的泵。讨论了刚性和柔性管道，描述了联轴器和其他附件。可泵送混凝土配比建议建议骨料的最佳级配；概述水、水泥和外加剂的要求；并强调有必要对可泵送性的试拌进行评估。强调了饱和轻骨料的重要性。对线路布置提出了建议；保持均匀的输送速度，以及生产线末端混凝土的均匀质量； 以及清理管道。本报告不包括喷射混凝土或泵送非结构隔热或多孔混凝土。

This report describes pumps for transporting and placing concrete. Rigid and flexible pipelines are discussed and couplings and other accessories described. Recommendations for proportioning pumpable concrete suggest optimum gradation of aggregates; outline water, cement, and admixture requirements; and emphasize the need for evaluation of trial mixes for pumpability. The importance of saturating lightweight aggregates is stressed. Suggestions are given for layout of lines; for maintaining uniform delivery rate, as well as uniform quality of concrete at the end of the line; and for cleaning out pipelines. This report does not cover shotcreting or pumping of nonstructural insulating or cellular concrete.