Thin construction system integration

1.Thin construction definition
Thin construction was also called the trowel cutting, and the cement base adhesive evenly with sawtooth trowel scratch on the construction of grass-roots, and then press Mega sandstone into the adhesive.forming 3-6mm thickness strong bonding layer.
2.Relevant standard specification
2.1Relevant material standards
JC/T547-2005<<Adhensive of the floor tile for porcelain»
Q/IQDT1-2010«Waterproof coating of butyl benzene latex»
2.2Related acceptance standards
GB50210-2001 «Quality acceptance specification of building decoration engineering》
3.System characteristics
3.1The system can reduce the weight of the buildings to reach the purpose of environmental protection and energy saving, especially renovation for the performance of the old house;
3.2Fireproof A1 level, the system also has a strong durability, impact resistance, resistance to freezing, etc., and has the advantages of resisting whiskering and birch to keep building new for a long time;
3.3The system construction method is simple, the follow-up maintenance cost is low, can save construction comprehensive cost and construction process does not produce pollution, after construction does not produce any harmful substances, is the real green construction.
4.System application scope
The system is suitable for interior wall and the seismic fortification intensity is not more than 8 degrees, paste height is not more than 24 m outdoor wall(outdoor wall body more than 24 meters,special design, can be used after the argument),can be widely used in all kinds of public buildings, residential buildings.

The construction technology - Paving technology

1. Construction process
Basic level processing - Do the line frame - The adhesive preparation - Adhesive construction - Sandstone back process - Sandstone brick - Vibrating pressing - Clean and protection

2. Pavement construction steps
2.1 Grass-roots treatment: the base surface should be clean, surface must not have dust, grease, mold release which have effect such as adhesive and base material. Local empty drum area has to weed it out with cement mortar leveling renew first, then use broom to clean up the dust and rubbish. Clean the base level with water before construction, do it after the base level without water and dry in the air.

2.2 Play frame: after the basic-roots meet the construction requirements, segmenting divided line, determining the cover layer standard at the same time, to control the surface size and vertical wall roughness.

2.3 Adhesive preparation: water with adhesive powder weight ratio is about 1:4 (make appropriate adjustments according to different climate). First, fill a certain amount of water or emulsion into the mixing barrel, then put the right amount of powder material into the mixing barrel, a low-speed electric blender to mix both to thick paste. Adhesives in preserved after the completion of the need to let stand for 5-10 minutes, stir well again before use. Adhesive operational time for room temperature is 2 hours.

2.4 Construction: Firstly pave a layer adhesive on the surface of the base, using sawtooth trowel with the straight side.Then use sawtooth trowel about 45° to 60° horizontally to adhesive tease out full uninterrupted zigzag stripe.

2.5 Sandstone back paste: paste in the back surface on the sandstone with a layer of adhesive on the sandstone before construction. First paste surface pressing daub a layer with sawtooth trowel straight edges, then use serrated with angle 45°to 60°carding adhesive, sandstone comb paste on the surface of the adhesive stripes should be parallel to the direction of the base surface adhesive stripes with a trowel straight edges are sandstone adhesive to make a chamfer edges, lest in the paste extrusion excess adhesive and pollution of sandstone material surface, reduce the surface cleaning after work and joint effort.

2.6 Sandstone bricklayer: according to the requirements of design, locator tools should be used when the sandstone paste, to ensure that the size of the seam meets the design requirements, and ensure that the width of the seam is consistent. Sandstone will be pasted on the laying back on combed good adhesive base surface.

2.7 Vibrated leveling: sandstone laying on base, with a rubber hammer in sandstone material surface with vibrating back and forth, appropriate adhesive between the sandstone and base level, and adjustment of straightness and flatness timely, sandstone material artwork reaches betterthan the national standard.

2.8 Clean and protect: when finished construction, please clear adhesive residue in 15 minutes, and make relevant protection measures, avoiding the sandstone pollution and damage.

The construction technology - Gap filling process

1. Construction process
The aperture processing - Embedded article bubble - Injecting neutral silicone weather proof sealant - Clean and protect

2. Caulking process steps
2.1 Aperture processing: caulking process should be at least 24 hours after sandstone brick. The sandstone gap should be clean before using silicone sealant, remove all dirt, grease and other contaminants, and do not have swelling in the joint. At the same time, to remove the loose adhensive between the sandstone gap. Optimum temperature of caulking is 12°C- 28°C .

2.2 Embedded article bubble: The jointing glue required by engineering work. Embedded seam bubble bars first, and then paste crepe paper on sandstone material surface edge to protect the sandstone not to be polluted. When jointing glue, keeping the horizontal flat vertical, width is consistent,uniform coating.

2.3 Injecting sealant: The sandstone use neutral silicone sealant caulking to prevent corrosion of sandstone material, and glue line is beautiful and resistant to solid. Gluing must be pay attention to the weather, put an end to a rainy day, avoid high temperature and low temperature 5°C below operation, to ensure the quality of sealant. Ensure the glue line thickness smooth, surface smooth, and beautiful fluent. Take off the crepe paper after the sealant is half dry.

2.4 Clean and protect: After caulking sandstone material surface residue of silicone sealant and clearing. Use cloth, along the sandstone diagonal direction gently wipe, wipe off excess gap filling agent, silicone sealant such as slightly dry reoccupy sponge or cloth and a small amount of water to polish the surface of the sandstone. Sandstone, then completes the relevant protection measures in order to avoid pollution or damage again.

Other matters need to be attention

1.On the back of the sandstone by pulling groove processing, bonding material fill the groove can form a hook structure in order to improve the bonding quality.
1.1The bonding cement base material for sample preparation, testing in laboratory, the bond strength of not less than 0.6MPa
2.During the transportation and construction
whentransport stacked sandstone must be light up and light down, pay attention to prevent knock against, vertical handling and stacking.
3.Clean the surface
3.1After this caulking, the surface should be clean up t timely .It is strictly prohibited to grinding processing, and cleaning with acid Alkali liquid.
3.2The part cleaning of the cement, lime, all kinds of metal rust, sufficient water to wet the surface first, with dilute hydrochloric acid to clean, and wash immediately, to avoid the influence of the residual acid of seams and sandstone to the material.
3.3The part cleaning of paint, oil, oily marker, use the organic solvents to get the oil paint clean, avoid residual fluid influence on the joint and surface.
4.The finished product protection
4.1Sandstone after the paste, the process may cause pollution and clash, temporary protection measures should be taken.
5.Sandstone material maintenance
5.1Adopt "calcification cleaner"(by 1:10 or 1:5 ratio), neutral almighty cleaning, (by 1:50 ratio),Mthe tiles cleaned ancTwat6「mud cleaner'
5.2To choose a typical pollution surface from the outside wall of the building to clean with the four kind of detergent, to determine the type of detergent and dilution ratio.
5.3With a detergent solution cleaning roller roll come and back on the sandstone material surface force to wipe, make the dirt wetting, out of scale. Clean the surface and the residual detergents with water.
5.4It is strictly prohibited to grinding processing, and cleaning with acid Alkali liquid.