Settlement joint; standard settlement joint; waterproof treatment; 0

The settlement joint is a working joint for preventing the uneven settlement of the foundation and causing the crack or damage of the upper structure. For example, the high storey building has many differences in height, or the structure is uneven, or the old and new buildings are connected, so it is necessary to set up settlement joints. The settlement joint needs to be completely disconnected from the superstructure. The following small series for everyone to introduce settlement joint specifications and settlement joints waterproof treatment.

Specification for settlement joints

The construction of settlement joints requires that the structures on both sides of the seam can be freely settled, and the leakage of water can be strictly prevented. Therefore, the settlement joints must pass through the whole section (including the foundation). The concrete construction method of settlement joint is as follows: the basic part: the asphalt, wood board or asphalt sand board embedded in the original foundation construction can be used as waterproof. Such as the basic construction without wood, but also can be filled with clay ramming, and in the edge of the flow line with 1:3 cement mortar filling, depth of about 15cm.

Culvert part: outside of the slot in the hot asphalt dipping hemp packing system, the depth is about 5cm and the inside of the 1:3 cement mortar filling depth is about 15cm, depending on the thickness of settlement joint of masonry and. The seam can be filled with asphalt and cement mortar; if it is too thick, the middle part can be filled with clay first.

The settlement of the construction quality requirements: Joint settlement joint end should be neat, founder, foundation and culvert down can not be crossed through, embedded objects should be closely filled.

Protection layer: all kinds of the above foundation of masonry culvert foundation along the edges, all along the settlement joint is set around the clay layer, thickness of 20cm, width of about 20cm. The foundation of masonry culvert, protection layer should be used asphalt concrete or asphalt mortar, thickness 10— 20cm.

Waterproof treatment of settlement joint

1, before construction, first of all, the water stop belt cutting and connection processing. Cut with scissors or art knives. In order to ensure the construction quality, the water stop belt joint must be bonded well.

2, due to the rubber sealing strip for flexible product, &mdash positioning in the rubber sealing belt,; must be kept flat on the interface part, but can not let the strip rolling and kink, if there is no show like kink should be timely adjustment. When fixing the water stopping belt, the water stopping belt should be prevented from deviation so as to avoid unilateral shortening and influence the sealing effect.

3, in the construction process, should pay attention to the impact of pouring force, so as not to force too much and puncture rubber waterproof belt. If it is found that there is a rupture, it should be repaired in time, otherwise, when the joint deformation and water pressure, the ability of the rubber waterproof belt to resist external force will be greatly reduced. When concrete is poured and rammed, it must be fully shock, so as not to affect the sealing effect.

4, to be a period of pouring process completed, hardened dry after cleaning, using the self sealing paste, paste directly on the construction joint interface.

5, besmear two times JS waterproof coating

6, waterproof layer construction is completed, after curing, immediately do cement mortar protection layer. Protection layer construction plan: waterproof layer construction is completed, after curing, immediately do 2cm cement mortar leveling layer as protection layer, after the final condensate water conservation.

7 、 SBS coil layer construction.

Construction method of settlement joint

1, basic part

The asphalt, wood board or asphalt sand board embedded in the prior foundation construction can be used as waterproof. Such as the foundation construction without wood, but also can be filled with clay ramming, and in the water surface edge to 1:3 cement mortar filling, depth of about 15cm.

2, the body part

Outside of the slot to dip hot asphalt hemp packing system, the depth is about 5cm and the inside of the 1:3 cement mortar filling depth is about 15cm, depending on the thickness of settlement joint of masonry and. The seam can be filled with asphalt and cement mortar; if it is too thick, the middle part can be filled with clay first.

3 、 construction quality requirements of settlement joint

Settlement joint end should be neat, founder, foundation and culvert down can not be crossed through, embedded objects should be closely filled.

4, protective layer

There are all kinds of above the foundation of masonry culvert foundation along the edges, all along the settlement joint is set around the clay layer, thickness of 20cm, width of about 20cm. The foundation of masonry culvert, protection layer should be used asphalt concrete or asphalt mortar, thickness 10— 20cm.

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卫生间防水施工 Specification for settlement joints

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