碾压混凝土是一种干硬性贫水泥的混凝土,使用硅酸盐水泥、火山灰质掺和料、水、外加剂、砂和分级控制的粗骨料拌制成无塌落度的干硬性混凝土,采用与土石坝施工相同的运输及铺筑设备,用振动碾分层压实。碾压混凝土坝既具有混凝土体积小、强度高、防渗性能好、坝身可溢流等特点,又具有土石坝施工程序简单、快速、经济、可使用大型通用机械的优点。现就碾压混凝土施工的温控及防裂技术做浅要分析与探讨。 RCC is a hard, dry, poorly clotted concrete mixed with Portland cement, volcanic ash admixtures, water, admixtures, sand, and graded controlled coarse aggregate into dry-hard concrete without slump, The same transportation and paving equipment used for earth-rockfill dam construction is used, layered and compacted with a vibratory mill. RCC dam has both the characteristics of small concrete volume, high strength, good impermeability, dam overflow and so on, but also with earth dam construction procedures simple, fast and economical, the advantages of using large common machinery. Now RCC construction temperature control and anti-cracking technology to do a minor analysis and discussion.