1. The construction unit should have a sound quality management organization, quality control system and quality inspection system, and the construction personnel should undergo job training and obtain the corresponding qualifications. During the review stage of the design drawings, the relevant contents of the structural crack resistance design should be carefully analyzed. When preparing the construction organization design, construction technical plan and conducting construction technical briefing, specific technical measures should be taken to control concrete cracks.

2. Before the construction of the concrete of important structural projects, it is advisable to test the stability of cement, the alkali activity of aggregates, the raw materials of concrete and the crack resistance of concrete, and optimize the selection of concrete raw materials through crack resistance tests. The crack resistance performance of concrete mix ratio should be optimized. Under the condition of meeting the concrete strength and pumping requirements, the concrete with the best crack resistance performance can be selected. The concrete with the best crack resistance performance can be selected. The concrete with the best crack resistance performance can be selected.

3. The formwork system of cast-in-place concrete structure must be designed to have sufficient bearing capacity, rigidity and stability. The columns of the upper and lower formwork supports should be aligned and pads should be laid. If the support is set on a natural foundation, the foundation should be uniformly stressed and prevented from sinking. The concrete strength during formwork removal, the order of formwork removal, and the support and top reinforcement measures after formwork removal should all comply with the requirements of relevant standards and construction technical plans.

4 Take effective measures to control the position of steel bars to prevent the displacement of the stress-bearing steel bars in the structure when pouring concrete.

5 The embedded pipelines in concrete slabs and walls should be placed inside the stress-bearing steel bars. When placed in the protective layer, anti-cracking steel mesh should be added on the outside. The reserved holes and reserved holes in concrete slabs and walls should be equipped with sufficient reinforcement and ensure sufficient anchorage length.

6 Strictly control the construction load. If the lotus load effect during construction is more unfavorable than the load effect of normal use, the structural performance of the components bearing the construction load should be calculated, and temporary support should be set under the component if necessary. When the upper floor slab is pouring concrete, the formwork or support of the lower layer shall not be removed.

7 Strictly control the time of people and material loading on the cast-in-place concrete floor slab. The floor slab load and construction load must be determined according to the structural design, concrete strength growth and the specific conditions of the support, and they should be stacked evenly or along the periphery.