1． 根据砼结构的要求选择最合适的砼的等级和水泥级配、 品种尽量不要采

1. Choose the most suitable concrete grade and cement gradation according to the requirements of the concrete structure, and try not to use higher- <br>strength cement as far as possible . <br>2. The selection of sand and stone raw materials and mud content should meet the design requirements and should not be overfilled. <br>3. More often as it should be more concrete admixture: superplasticizer quick-setting agent and these can be better and more <br>quickly improve the quality and the quality of the concrete, even to improve the concrete workability multiple purposes cost reduction <br>effect . <br>4. Skilled use of concrete shrinkage compensation technology in construction. The admixture should be fully considered for its <br>unequal varieties, amount of parameters, and reasonable combination ratio to achieve the best effect.

1. Select the most appropriate concrete grade, cement gradation and variety according to the requirements of concrete structure, and try not to adopt higher grade<br>Strong cement.<br>2. The selection of sand and stone raw materials and mud content shall meet the design requirements, and do not make up for the number.<br>3. In more cases, concrete admixtures should be used more, such as water reducing agent and accelerator, which can be better<br>Quickly improve the quality and quality of concrete, and even improve the working performance of concrete and reduce the cost<br>effect.<br>4. Skillfully use the technical process of concrete shrinkage compensation in construction. The effect of additives should be fully considered<br>Different varieties, combined amount and reasonable combination proportion make it achieve the best effect.

1. According to the requirements of concrete structure, choose the most suitable concrete grade, cement gradation and varieties, and try not to use higher ones. Strength of cement. 2. The selection of sand and stone raw materials and silt content should meet the design requirements. 3. In more cases, more concrete admixtures such as water reducing agent and accelerator should be used, which can be better and better. Improve the quality and quality of concrete quickly, and even achieve the goal of improving the working performance of concrete and reducing the cost. Effect. 4. Skilled use of concrete shrinkage compensation technology in construction. Admixtures should be fully considered. Different varieties, dosage and reasonable mixing ratio can achieve the best results.