Stone wall construction technology

1) Thin small specification block (side length less than 40cm) Process flow:

Basic treatment - vertical lifting, set square, find rules, plaster cake - wipe the bottom mortar - line partition - stone brush protective agent - row block - insert block - surface pointing and wiping

2) Normal large-size block (side length > 40cm) process flow:

Preparation for construction (drilling, trenching - threading copper wire or galvanized lead wire and block fixation - binding, fixed wire mesh - lifting vertical, finding rules, elastic wire - stone brush protective agent - stone installation - layered grouting - seam rubbing

(2) Operation process

1) Thin small specification blocks (generally less than 10mm in thickness) : the side length is less than 40cm, which can be pasted.

A. Basic level treatment, vertical lifting, square setting and rules. For other items, please refer to relevant parts of key points of inlaid face brick construction.To pay attention to the same wall must not have more than one row of non - whole material, and should be inserted in a hidden part.

B. Under the condition of wetting the base, brush the interfacial agent together with the cement slurry, and base with the brush;The bottom ash is made of 1:3 cement mortar with a thickness of about 12mm. The operation is divided into two times, about 5mm for the first time and 7mm for the second time. After the bottom ash is compacted and scraped flat, the bottom ash surface is scratched.

C, stone material surface treatment: stone material surface after fully dry (moisture content should be less than 8%), with stone stone hexahedron protective protective agent, and this process must be conducted in the pollution-free environment, the stone fang on flat on wood, brush with wool dipped in protective agent, in stone material surface evenly, besmear brushs must reach the designated position, for the first time brushing after 24 h intervals with the same method and the second time brushing stone protective agent, such as the use of cement or adhesive, fixed interval after 48 h bonding surface with a special cement on stone material processing, hair hair cement solidification hardening rear can use.

D. After the base ash solidifies, the material can be divided into elastic lines, and then the wetted material can be coated with plain cement slurry with a thickness of 2 ~ 3mm, and the interfacial agent with water weight of 20% can be inserted. Then, the material can be tapped with a wooden hammer and leveled and straightened with a ruler.

2) Large-size blocks: When the side length is more than 40cm and the height of the inserts is more than 1m, the following installation method can be adopted.

, drilling and carved trough A: before you install panels according to the design requirements with bench drill, and punch A hole in advance should nail wooden frame bit straight face on the board, under every board, the two sides, punch A hole A hit from the ends of the plate width 1/4, dozen two eye on each side, aperture of 5 mm, depth of 12 mm, the back hole location is apart from the slabs with 8 mm advisable.If marble, polished granite, plate width is larger, can increase the number of holes.After drilling, gently pick a groove with a marble machine, about 5mm deep, together with the hole to form an elephant nose eye, for buried copper wire.If panels larger specifications, the following bad end tied to galvanized steel wire or copper wire, can be set without stick act the role of the side, using handheld portable small and thin grinding wheel, in accordance with the provisions, on the 1/4 of plate high, under the open a slot, (slot is about 3 ~ 4 cm long, groove depth and act the role of the back panel through about 12 mm, vertical slot generally center, can be partial, but with no damage to the finish and the alkali advisable), can be galvanized wire or copper wire lie into the slot, and tied to steel fabric fixed.This method can also be done directly on the site of the panel.

B, copper wire or galvanized wire: the prepared copper wire or galvanized wire cut into 20 cm, end with a wooden wedge sticky epoxy resin copper wire or galvanized wire into the hole fixed firmly, the other end of the copper wire or galvanized wire along the groove bending and lie down into the slot, or polished marble granite slab upper and lower end face no copper wire or galvanized wire is outstanding, so and adjacent slab joints.

C. Binding steel reinforcement: First remove embedded ribs from the wall and sweep the parts of the wall with marble inserts.Tie a vertical Ф first 6 reinforced, and tied the good vertical reinforcement with embedded steel bending pressure on metope.Transverse reinforcement is used for binding marble or polished granite plates. If the height of the plates is 60cm, the first transverse reinforcement should be tied with the main reinforcement 10cm above the ground and used for binding the lower end of the first layer of plates to fix copper wire or galvanized lead wire.The second horizontal bar is tied on the 50cm horizontal line 7 ~ 8cm, 2 ~ 3cm lower than the upper mouth of the SLATE. It is used for binding the upper mouth of the first layer of SLATE to fix copper wire or galvanized lead wire, and then tie one horizontal bar every 60cm upwards.

D. Elastic thread: The walls, columns and doors and Windows to be covered with marble or polished granite will first be fitted with large thread pendants to find the vertical from top to bottom.Should consider the thickness of marble or polished granite plate, filling mortar gap and steel mesh size, the general marble, polished granite skin from the structural surface thickness should be 5 ~ 7cm.Find out the vertical, along the wall on the ground to pop up marble or polished granite, etc.This line is the installation reference line of the first layer marble or granite, etc.The numbered marble or granite board shall draw the position line on the elastic datum line, and leave 1mm gap in each piece (if the design requires to open the gap, the gap shall be left according to the design regulations).

E, stone material surface treatment: stone material surface after fully dry (moisture content should be less than 8%), with stone stone hexahedron protective protective agent, and this process must be conducted in the pollution-free environment, the stone flat on wood square, brush with wool dipped in protective agent, in stone material surface evenly, besmear brushs must reach the designated position, for the first time brushing after 24 h intervals with the same method and the second time brushing stone protective agent, such as the use of cement or adhesive, fixed interval after 48 h was carried out on the bonding surface with special cement stone processing, hair hair cement solidification hardening rear can use.

F. Basic level preparation: clean the structural surface of the pre-finished facing stone, at the same time, lift straight, set square, find rules, pop vertical straight horizontal line.According to the design drawings and actual needs, the position line and block line of stone installation are ejected.

G. Installation of marble or polished granite: take the SLATE according to the position and straighten the copper wire or galvanized lead wire, place the SLATE in place, tilt the upper mouth of the SLATE outwards, extend the right hand into the back of the SLATE, tie the copper wire or galvanized lead wire at the lower mouth of the SLATE on the transverse rib.Tie not too tight can leave a surplus, as long as the copper wire or galvanized lead wire and horizontal bar can be tied, put the SLATE up, you can tie the marble or polished granite SLATE on the top of the copper wire or galvanized lead wire, and wood wedge pad stable, block material and the gap between the base is generally 30 ~ 50mm.Check and adjust the wooden wedge with a ruler plate, then fasten the copper wire or galvanized lead wire, and carry on to the other party in turn.Cylinders may be installed in a clockwise direction, usually starting from the front.After the first layer is installed, use the ruler plate to find vertical, horizontal ruler to find the level, square square to find the square Angle of Yin and Yang, when installing the SLATE found that the SLATE specifications are not accurate or the gap between the SLATE is inconsistent, apply lead pad mat, make the gap between the SLATE uniform and consistent, and keep the first layer of SLATE on the straight.After looking for perpendicular, straight, square, with bowl concocity plaster, adjust the gesso that congee shape plaster is stuck in marble or between fluctuation of polished granite SLATE, make this two layer SLATE forms one whole, wooden wedge place can stick gesso, rejoin with rely on rule to check to have without deformation, wait for gesso to harden hind but grouting.(If a plastic hose is designed with caulking, plug it before grouting).

H, grouting: put the mixture ratio of 1:2.5 cement mortar into half of the VAT and water into porridge shape, using iron dustpan to scoop the slurry into slowly, pay attention not to touch 3 marble, while filling with a rubber hammer to lightly hit the SLATE surface so that filling mortar exhaust.The height of the first layer is 15cm, not more than 1/3 of the stone slab height;The first layer of grouting is very important, because to anchor the bottom of the SLATE copper wire and to fix the decorative panel, so to operate gently, to prevent collision and strong irrigation.If the stone plate moves outside, it should be removed and reinstalled immediately.

I. Seam cleaning: After the installation of all the slates, remove all traces of gypsum and residual slurry, scrub clean with linen, and fix the seams with colored paste according to the color of the slates, so as to make the cracks dense, uniform, clean and consistent in color.

3) Column veneer: the installation of cylinder marble or polished granite has the same procedures as that of wall veneer, such as elastic thread, drilling hole, reinforcing bar binding and installation. It should be noted that wooden squares are nailed into groove wooden clamps before grouting, and the marble slabs are stuck on both sides to prevent external expansion of marble or polished granite slabs during grouting.

4) When installing outdoor marble or polished granite in summer, reliable measures should be taken to prevent exposure to the sun.