What is stubble masonry

Stubble masonry is a construction method of brick building, which refers to the brick arch circle.

The masonry should be built by the retreat method, and each block should be retracted by half a piece, and the arch ring should be capped within 24h.

In addition to the provisions of the design documents, the strength of the stone used in the masonry arch ring shall not be less than 40MPa; Stone masonry.

Cement mortar for the arch ring.

If the grade is not specified in the design, if the span is less than or equal to 30m, it shall not be less than M10, and if it is greater than 30m, it shall not be less than M15.

Masonry method construction requirements.

1) The size of the formwork of the arch tire should meet the requirements of the construction design, and the formwork expansion joint should be set aside, and the plate joint should be tight and smooth.

2) The installation of the arch tire should be stable, the elevation should be accurate, and the disassembly and assembly should be simple.

3) Before masonry, the arch tire should be fully moistened, rinsed clean, and evenly coated with the separator.

4) Masonry should be carried out symmetrically from both sides to the center of the arch, the ash joint is symmetrical, the center of the arch is in the correct position, and the mortar of the ash joint is full and tight.

Construction technology. The masonry methods of brick masonry are:"Trinity"Bricklaying method, squeezing method, scraping method and mouth ash method. Among them,"Trinity"The bricklaying method and the squeezing method are the most commonly used.

Trinity"Bricklaying method: It is a masonry method in which a brick, a shovel of ash, a kneading and scraping off the extruded mortar. The advantages of this masonry method: the ash joints are easy to be full, the adhesion is good, and the wall is neat. Therefore, solid brick masonry should be used"Trinity"Bricklaying method.

Squeezing method: that is, use an ash spoon, shovel or ash spreader to spread a section of mortar on the top of the wall, and then take the brick with both hands or one hand to hold the brick, and then squeeze the brick into the mortar with a certain thickness to flatten the brick to achieve the requirements of the lower edge, the upper line, and the horizontal and vertical.

The advantages of this masonry method: several bricks can be squeezed in a row, reducing the cumbersome action; Flat pushing and squeezing can make the ash seam full; High efficiency; Ensure the quality of masonry. The construction process of brick masonry has leveling and pay-off.

Place bricks, stand up and count rods.

Hanging thread, bricklaying, hooking and other processes.

Flattened. Before building the wall, it should be in the moisture-proof layer of the foundation.

Or determine the elevation of each floor on the floor, and use cement mortar or C10 fine stone concrete.

Leveling, so that the bottom elevation of each section of the brick wall meets the design requirements.

Pay-off. According to the axis given on the gantry board and the wall size marked on the drawing, the axis of the wall and the width line of the wall are popped up with ink lines on the top surface of the foundation, and the position line of the door opening is determined.

Swing the bricks. Swinging bricks refers to the use of dry bricks to test the pendulum on the base surface of the pay-off according to the selected assembly method. The purpose of placing bricks is to check whether the ink line is in line with the modulus of bricks at the openings of doors and windows, attached wall stacks, etc., so as to reduce brick cutting as much as possible.

Stand up and count the rods. The number of skin rods refers to the thickness of each skin brick and brick joint, as well as the openings of doors and windows, lintels, floors, beam bottoms, and embedded parts.

Hang the line. In order to ensure that the masonry is vertical and flat, the masonry must be hung with lines, generally two or four walls can be hung on one side, three or seven walls.

and above the wall should be double-sided hanging wire.

This is one of the methods of masonry, generally in the masonry of the T-shaped wall, due to the needs of the construction, will put down a certain section of the wall first, temporarily do not masonry, the method taken, masonry each layer to the direction of the T-shaped wall back about 60mm.