Inorganic insulation mortar exhibits excellent temperature and chemical stability. The insulation system of this material is made entirely from pure inorganic substances, granting it remarkable resistance to acids and alkalis, corrosion, cracking, detachment, and ensuring overall stability. Consequently, its lifespan is notably extended, comparable to that of conventional building wall materials.

During the construction process, this material exhibits characteristics such as resistance to aging, corrosion resistance, long lifespan, high quality, and ease of installation. It is also a relatively common type of new construction material at present.

1. Construction Conditions

All types of incoming pipelines, downspout supports, embedded components, etc., on door and window frames and walls have been installed in accordance with the design specifications. The temperature of the construction environment should not fall below 5 ℃ or exceed 35 ℃. The wind speed must comply with construction standards, and work is prohibited on rainy days or prior to rainfall. Adequate rainproof measures must be implemented.

2. Construction Equipment

Circular mortar mixers, vertical transport machinery, handcarts, electric drills, etc.

Common plastering tools along with specialized testing instruments for plastering, wire laying tools, buckets, scissors, shovels, hammers, chisels, wire support boards, rulers, copper rulers, etc.

3. Construction Process Flow

The surface treatment involves snapping the standard horizontal line and applying it to the internal and external corners of the wall, as well as to the exterior window sills and the corner protectors for doors and windows. The treatment of the concrete base with a rough surface requires wetting the clay hollow bricks in advance. Following this, the plaster mix (insulation mortar) is applied to the wall. After applying the insulation mortar layer by layer, water should be sprayed for curing. Next, alkali-resistant fiberglass mesh cloth is laid down, followed by the application of waterproof and crack-resistant mortar. Finally, it is essential to check the flatness and verticality of the wall to ensure it passes the test.

4. Construction Operation Method

1. Construction Preparation: In accordance with the design specifications for the insulation layer's thickness, utilize rubber powder polystyrene particles to create standard thickness patches, install the bars, and regulate the insulation layer.

2. Surface Treatment: Generally, surface treatment primarily involves the removal of various dust, dirt, and oil stains from the wall surface. For areas with irregular surfaces, it is essential to clean and repair them beforehand. Wall openings must be securely sealed, and the concrete base surface should be treated with interface agents for rough surface preparation. Anti-cracking nets (fiberglass mesh) should be positioned between the two materials. The construction base should be moistened with water, ensuring that no visible water remains on the wall during the plastering process.

Surface Treatment Requirements: The base wall surface must be thoroughly cleaned of floating ash, oil stains, release agents, hollow areas, and weathered materials that could hinder wall construction. Any wall surface protrusions exceeding 10mm should be leveled. The base layer's surface should be uniformly coated with interface mortar.

3.Mortar mixing: For the mixing of insulation mortar, mechanical mixing is recommended, with a mixing duration of 5 to 6 minutes and a mortar consistency ranging from 50 mm to 70 mm. The mortar should be utilized as required and is generally expected to be consumed within 3 hours. Unbound ground ash must be combined with new materials in a weight ratio of 14 and should be mechanically mixed prior to further use; The waterproof and crack-resistant mortar is composed of 32.5 ordinary Portland cement. The cement, fine sand, and waterproof and crack-resistant agent are to be prepared in a weight ratio of 121. The mortar should achieve a consistency of 60 mm to 80 mm. After thorough mixing, allow it to rest for 5 minutes before proceeding with additional mixing.

4.Painting and polishing: Prior to construction, begin by creating mortar samples/ test blocks and reinforcing bars in accordance with the specified thickness of the insulation layer. Once a certain strength is achieved, proceed to apply insulation mortar.

Layered construction must be executed. Initially, apply an interface agent to the concrete surface, followed by the application of the first layer of insulation. The thickness of this first layer should be maintained between 10mm and 12mm. During application, ensure it is pressed and compacted firmly, gently pull it with bamboo thread, and allow it to set before commencing watering and curing; the application of the second layer of insulation mortar should occur 24 hours after the first layer. Prior to applying the second layer, the underlying insulation mortar must be moistened one hour in advance, ensuring no visible water is present when applying the powder. After the insulation mortar is applied, utilize a wooden trowel to smooth it out (with a thickness of 8 mm to 10 mm), and verify the verticality and flatness of the wall surface (including eaves, window lintels, awnings, balconies, ceilings, and protruding wall sections which should be sloped with cement mortar, and drip lines should be established below). The curing duration for the second layer of insulation mortar must not be less than 7 days, and there should be no signs of whitening or dehydration.

5.Crack-resistant coating treatment

The first step involves evenly applying anti-cracking mortar, with a thickness ranging from 3mm to 6mm, onto the insulation layer's surface. Following this, the cut alkali-resistant mesh cloth should be pressed into the mortar using an iron trowel without delay. It is essential that the overlap between the alkali-resistant mesh fabrics is no less than 50mm, and that the fabrics are free from wrinkles, hollows, or curls, achieving a fullness of 100%.

The second step requires the immediate application of a second layer of crack-resistant mortar, which should be smoothed and compacted to ensure that the flatness complies with regulatory standards.

In the third step, a double layer of alkali-resistant mesh cloth should be installed on the first layer, specifically below 2 meters, following the same method as previously described: the first layer of mesh cloth must be connected, and then the second layer should be laid. It is crucial that the crack-resistant mortar between the two layers of alkali-resistant mesh cloth is fully applied, and dry pasting is strictly prohibited.