Dry-mixed masonry mortar includes two varieties: lightweight masonry mortar and ordinary masonry mortar.
(1) Range of application
Lightweight masonry mortar is suitable for masonry aerated concrete blocks; ordinary masonry mortar is suitable for masonry clay hollow bricks and small concrete hollow blocks.
(2) Main performance
1) Good water retention; masonry materials need not be watered in advance.
2) High bond strength, slight shrinkage, and freeze-thaw resistance.
3) The construction feels good; the construction is simple and fast, saving labor and materials. Non-toxic, tasteless, non-polluting, safe, and environmentally friendly.
(4) Construction method
1) Add dry powder and water into the container and stir well. Let it stand for 3~5 minutes, and mix it a little for use. The amount of water added to light masonry dry powder is 14%. Mixing procedure: add water first and then feed.
2) Spread the mixed mortar evenly on the block, and control the thickness at 5~10mm. The tool can be a bucket with a tooth wedge.
3) Place the block on the corresponding masonry position, adjust, and press lightly.
4) Pointing with masonry mortar.
5) The next construction step must be carried out after the mortar layer is completely dry.
6) Other matters shall follow the relevant specifications of masonry construction projects.
(5) Notes
1) During construction, the air and wall temperatures should be greater than + 5T, and the wind force should not exceed level 5.
2) Do not mix with other materials.
3) Drinking water that meets the national standards can directly use for mixing dry powder; when using water from other sources, one must test it according to the “Standards for Concrete Mixing Water” (JGJ (6)Before applying.
4) Stir the mortar before use; the stirred mortar should be used up within 2 hours.
5) Stirring again if the mixed one slowly dries and thickens.
6) Store the dry powder in a cool, ventilated place. It is more conducive to long-term storage on wooden pallets. The shelf life of unopened dry powder is half a year.
Tile Adhesives
Tile adhesive comprises high-quality cement, fine aggregate, filler, unique admixture, and dry powder polymer. It is an organic-inorganic composite tile adhesive. It is a non-toxic, harmless, and eco-friendly product, especially suitable for thin layer paste construction, which is the best choice to replace traditional cement mortar paste tiles.
The so-called thin-layer pasting construction uses a special sawtooth knife to scrape the tile adhesive on the construction base surface evenly. Since the tile adhesive has good water retention, there is no need for pre-soaking and wetting. Instead, it can directly press the tiles into the adhesive with a slight rotation. As a result, the tile adhesive has good sag resistance and leveling properties so that it won’t slide down and can be evenly distributed across the back of the tile without hollowing and cracking. In addition, the construction thickness of tile adhesive is about 2~4mm, while the thickness of traditional cement mortar paste tiles is usually 15~30mm. Therefore, as long as the construction base is flat, the cost-effectiveness of the comprehensive technology of thin layer paste construction is higher than that of traditional cement mortar paste, which uses less material but with higher quality and is faster and safer.
(1) Advantages and features
1) Thin layer construction, high bonding strength, low shrinkage.
2) Good impermeability, no hollowing, no cracking.
3) Fast construction and good safety performance.
4) Good water retention, no efflorescence, and good freeze-thaw resistance.
5) Bagged powder; easy to use by adding water and stir on site.
6) Environmental protection.
(1) Scope of application
Tile adhesives are suitable for pasting interior and exterior wall tiles, kitchen and bathroom tiles, tile floors and cultural stones.
(2) Construction method
1) Grassroots
The base layer must reach level 2 flatness, clean, dry, free from any oil stains, and free from loosening and sanding on the surface.
2) Mixing material
The tile adhesive is 20kg bagged powder; add about 5kg of water, and beat the slurry into a uniform, non-agglomerated paste with an electric mixer.
3) construction
Scrape the mixed cement evenly on the base surface with a special zigzag steamed knife, comb it into stripes, then quickly paste the tiles, gently rotate, and press it in with your hands.
4) Dosage The material amount depends on the base surface’s flatness; the thickness is controlled between 2~4mm, and the theoretical amount is 3kg/m2.
