Treatment principle of waterproof leakage in basement

First of all, in the process of basement wall masonry, it is necessary to ensure the fullness of mortar and prevent brick joints from leaking. And before plastering inside and outside the external wall, the roots should be cleaned to ensure that the plastering of the roots is compact and in place, and when necessary, the internal angle position of the external wall and the foundation handover should be made into a splayed angle. At the same time, it is also necessary to ensure that the bottom elevation of waterproof mortar outside the wall is higher than the indoor standard of the basement. When constructing flexible waterproof layer for external wall, the root of the wall should also be specially treated, and the construction must be in place.

2, deformation joint seepage:

The inside of the joint is filled with foam board and blocked with asphalt hemp yarn. At the same time, the outside needs to be coated with ointment.

3, pipeline through the basement wall hole:

After the pipeline installation is completed, the surrounding areas shall be tamped with cement mortar or plain cement with low slump, and then waterproof mortar shall be painted outside, and polyurethane waterproof coating shall be painted twice after the mortar is dried.

4, aproll parts water seepage:

To make the waterproof mortar of the external wall exceed the aproll of 150 mm or reach the toe top surface, ensure that the moisture-proof layer in the aproll area is kept open, and do a good job of ointment caulking between aproll and toe joints. In order to ensure the moisture-proof effect and avoid water seepage, the basement wall needs to be built with cement mortar, and the mortar joint must be full.

5, metope joint seepage:

Before laying, wet the brick surface with water before laying mortar. And ensure that the mortar joint is full in the process of masonry, and the mortar joint should be pointed. Before plastering the external wall, check the mortar joint. If there is any falsehood, strengthen the joint repair.