How to prevent craze of floor of floor QiChang home construction to share

How to prevent craze of floor of floor QiChang home construction share

1. Surface of construction at the grass-roots level

base construction has great influence for the overall quality of construction projects, but as a result of base construction is on the ground operation, therefore very easily affected by other factors, leading to the construction quality is not up to standard. If the basic structure of the strong degree and lack of compactness, then later in the construction and use process will inevitably appear uneven settlement, appear even cracking phenomenon, lead to all kinds of engineering quality problems. So according to this phenomenon, we should be combined with the actual establishment scientific and reasonable construction scheme, satisfy the following conditions and requirements, basic quality requirements of concrete to achieve the standards prescribed by the state; For no aggregate concrete cushion layer thickness control; For higher foundation compactness.

2. Jump warehouse casting construction

concrete in the process of placing and condensation, the impact of temperature change on the very significant, when construction personnel after large area concrete pouring, the condensed phase generally won't appear large condensation, won't appear larger crack, but this does not accord with the current construction obviously, this needs we will adopt the way of the warehouse for casting concrete, and in practice, the construction quality control, to ensure the construction quality.

3. Ground segmentation technology

in the process of concrete construction, the ground segmentation technology is an important link of the construction, especially in the large area of the reinforced concrete engineering construction, the ground segmentation technology to achieve the ideal effect of construction. After practice analysis, casting of concrete engineering are generally in the template engineering after 24 hours after the completion of the installation, at this stage, large area of the reinforced concrete engineering construction personnel can be divided into several small block unit, flat land of coagulation, such not only can guarantee the normal casting of concrete, also can avoid the concrete condensation phase appeared quality problem such as craze.

4。 Slip energy release layer set technology

and considering the concrete base surface is concrete, in order to reduce concrete under the action of an external binding the release of its internal stress, relieve between base and surface due to the energy release of concrete crack problem appears especially important. Before pouring concrete surface, usually at the grassroots level above laid a layer of plastic film, the between base and surface slip resistance is reduced, reducing the external constraint forces.

5。 Strengthen maintenance

concrete hydration reaction needs moist environment, moisture curing can improve the early strength of concrete, improve anti-cracking ability. In addition, moisture curing make full use of the concrete & other; Drying shrinkage is wet bilge & throughout; Features, reducing the concrete pouring occur early drying shrinkage cracks. Immediately after the initial set of concrete, covering plastic film, prevent moisture loss, film covering two sacks, and pouring water insulation moisture curing. Especially for micro expansive concrete, must always keep moist, give full play to their role as the inflation.