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采用悬辊工艺生产混凝土排水管用的混凝土为干硬性混凝土，而《普通混凝土配合比设计规程》（ＪＧＪ／５５—９６）不适用于干硬性混凝土。为此，我们通过多年来的试验和研究，提出了可供生产单位使用的干硬性混凝土配合比设计中有关指标的取值及计算方法。１配合比设计要...
The concrete used for the production of concrete drainage pipes by the suspension roller process is dry hard concrete, and the “Construction Regulations for Common Concrete Mixtures” (JGJ/55-96) is not applicable to dry hard concrete. For this reason, through years of experiments and research, we have proposed the values and calculation methods for the relevant indicators in the design of dry-hard concrete for use by production units. 1 mix design to...