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Construction method of rubble
Date：
2021-08-05 11:51
source：
The rubble foundation is formed by using rubble with a strength of not less than 20 and mortar. In order to ensure the quality of the masonry, the rubble foundation The height of each step can not be less than 400 mm, and the width can not be less than 200 mm, and the width of each side of each section needs to be not more than 200 mm. Different rubbles should be staggered. The mortar in the masonry joints should be filled. In each step, no less than two rubbles should be used. The skins between the stones should be staggered and staggered. arrangement. Because of the rubble foundation, its frost resistance is better, so in some cold and humid areas, we can apply building foundations below 6 stories, but the rubble foundation has poor integrity, so if there is a building with vibrations, it is very Less used, then we will talk to you about how the rubble foundation is constructed?
Before the construction, we need to prepare tools, the tools needed for masonry rubble, in addition to the tools commonly used by bricklayers, we also need to have a hand hammer, Sledgehammer, small crowbar, etc. According to the user's design requirements, the rubble and the mortar used in the construction process should be selected. The rubble used in our study should be seamless, solid and free of cracks, no peeling, etc., and the thickness of the middle part should not be greater than 150 mm. For masonry mortar, we can choose cement mixed mortar or cement mortar, and then check the size of the machine tank, the height and thickness of the cushion, and remove the impurities inside. If there is accumulated water inside, we should drain it in time. If there is no more water and it is very dry, we will spray water.
Determine the unloading port so that the rubble and mortar can be conveyed. Before the rubble foundation is laid, we can follow the foundation axis to determine the position of its sideline, the specific method Two vertical lines are drawn downward from the sign board, and then the horizontal line of the through slot is drawn from the two opposite vertical lines. If it is a stepped rubble foundation, the method of hanging the line is: first pull through the horizontal line of the groove according to the width of the next step, then according to the step height required by the drawing, level it properly after laying it to the design elevation, and then take the vertical line to the bottom The width of the masonry required for a step is to be assembled to the top of the foundation accordingly.
When building stones, choose relatively square and larger stones and place them on the four corners of the foundation. After the corner stones are built, the position of the house will be fixed. So the corner stone is also called "positioning stone". The stones should be mortared, that is, spread the mortar on the cushion of the foundation groove first, and then put the stones on the big surface downwards, and they should be squeezed tightly and firmly. When grouting, the mortar is filled in the large stone gap first, then the crushed stones are used to inlay the stone, and the stone is lightly tapped with a hand hammer. It is not allowed to plug the joints with small stones before grouting, otherwise it is easy to cause joints and voids, which will affect the quality of the masonry. If you want to know more about Stone Mosaic, Ice Cracked Mosaic, Natural Cultural Stone, you can follow us.
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