Urgent need for stone masonry construction technology, slurry stone construction technology

5. Upper stone masonry Here you are 2 kinds of processes, dry and slurry, dry masonry to lay a good stone mat, or the stone wall is unstable, slurry to fill the mortar, hook joint 1You can go to the **bookstore to check out 2Arrive.

1. Materials. 1) Masonry stone.

The stone used in the slurry masonry stone is purchased, and the bad judgment jasper must be made of hard texture, no weathering spalling and cracks, and its impact sensitive water resistance, frost resistance, compressive strength, etc. must meet the design and specification requirements. The masonry surface stone should be processed to meet the design and specification requirements.

2) Masonry mortar.

The masonry mortar should meet the design requirements and design markings, and workability, and have good water retention performance; The mix ratio of the mortar shall be determined by test and shall be agreed by the supervising engineer; The mortar must be mixed evenly, and the mixing time shall not be less than that of the time from the end of the feeding, and the once mixed should be used before it condenses; The batching error of cement and plasticizer shall not be greater than 2%, the batching error of sand shall not be greater than 5%, and the batching error of water shall not be greater than 1%.

2. Mortar masonry strip stone masonry.

The mortar masonry must be built by the mortar method, and the consistency of the mortar should be 3 5cm, and it should be appropriately adjusted when the climate changes. When masonry, the stone should be layered and laid down, and the method of filling the center of the upper and lower staggered joints should not be empty.

Before laying the mortar, the stone is sprinkled with water to moisten it, so that it can be surfaced and fully absorbed, but no stagnant water shall remain.

The process of slurry block stone is as follows:

Visual inspection, stone selection, test masonry: according to the situation of the masonry part, estimate the shape and size of the required stone, and then select the stone, and do not pad mortar for test masonry.

Use a sledgehammer to remove the big edges and corners: find out the big edges and corners in the stone according to the test masonry, and use. Sledgehammer knocked out.

Use a hand hammer to remove small edges and corners.

Use a chisel to chisel off the protruding part (the part where the bottom surface is uneven or affects the upper part of the masonry).

Laying mortar: Lay the mortar and turn the stones back.

Alignment: Use a small crowbar to straighten the stone so that the ash joints on both sides are suitable. If the stone is small, gently tap it with a hand hammer, and if the stone is large, knead it a few times with your hands to make the ash crack compact.

The main construction requirements for slurry stone are:

1) The slurry stone should be close to the slope, without holes, and the skeleton construction should be damaged to achieve the overall aesthetic effect, and the lines should be neat and smooth.

2) The amount of reserved and plugged fiber of masonry settlement joints or expansion joints should meet the design requirements, and the joints should be straight and the plug joints should be tight.

3) An expansion joint is set every 10 15m along the line direction, the width of the joint is 2 3cm, and the whole section of the joint is filled with asphalt wadding.

4) When excavating the foundation, the position of the skeleton foundation must be determined, and the line must be pulled when excavating, and the line must be used as a reference to avoid over-excavation and less excavation.