One, material properties

The corundum floor is a common name for domestic hardwearing and hardened flooring, and foreign companies call it "ground hardener." Applicable to industrial sites, docks, parking lots, commercial stores, logistics warehouses and other ground decoration needs, with wear and compression resistance, reduce dust, hard surface, easy to clean, economical and durable.

two, grassroots requirements and usage control

1. Use pre-mixed concrete (strength grade C25 or higher), cement dosage ≥300kg/M3, fly ash content ≤10% (abrasion material amount 5kg/m2).

2, strictly control the concrete raw materials, water-cement ratio should be 0.5 ± 0.05.

3, material usage control:

Emery: 5-6KG/m2

Curing agent / liquid hardener: 0.15KG/m2

three, construction tools:

In addition to the use of conventional machines with concrete floors, prepare the following tools.

1, bleeding tools: rubber pipe or vacuum suction equipment.

2. Leveling out the pulping tool: the middle sand-filled Ф150 steel pipe, the length is more than 500mm above the ground model width, and the two ends can be set with a rotatable pull ring.

3. Twilight machine: The chassis is a four-leaf steel sheet. The surface layer can be calendered by adjusting the angle of the steel sheet (the angle is small when used for a soft surface layer, and the angle is large when used for a hard surface layer).

4、Shoes: Flat-bottomed rubber shoes---after the initial setting of the concrete; Waterproof paper shoes or waterproof paper bags ---- the surface layer of the leaves are calendered.

four,Construction preparation:

1. Floor gravel cushion is compacted with roller.

2, according to the design elevation set template (steel template or channel steel), the level indicator at any time to detect the template elevation, the deviation of the wedge block adjustment.

3, according to the requirements of the specification, according to the vertical and horizontal axis sub-cell grid sewing.

4. The maximum particle size of gravel used in concrete shall be ≤ 30mm, and the water-cement ratio and slump shall be as small as possible.

5, Concret soil marking is not less than C25, the site slump in the 75 ~ 100 mm.

Fives, construction steps method:

1, base concrete mixing and filling

Construction requirements: equal proportions of sand, stones, cement, and water are mixed evenly; the thickness of the screed-base screed requires a thickness of 30mm-50mmM or more, the strength is more than C25, the minimum cementitious material content is, and the slump in the site is 75-100mm. The surface should be dense, smooth, and free from bleeding.

Construction taboo: During the process, avoid splashing water on the surface.

2, grass-roots level

Construction requirements: When the ground floor concrete is first set (about 2~3h), wearable floor construction can be carried out. The disc is first installed on the trowel, the whole is polished and gradually wiped inwards from the periphery, and it is smoothed and lifted. Pulp effect.

Note: The initial setting time should be determined according to the operating environment, climate and other circumstances. General foot depression is not more than 5mm to start the laying of emery wear resistant material.

3, first spread the diamond

Construction requirements: The first time spreading 2/3 of the silicon carbide material evenly spread on the surface of the crucible (evenly scraped with a scraper) until the material absorbs the moisture in the crucible, and the surface begins to turn gray when the color becomes dark Time wiped.

4, rubbing, smoothing

Construction requirements: Use a trowel with a disc to grind and disperse it so that it can be combined with the concrete slurry of the base layer. The wall can be iron kneaded manually and flattened.

5. The second time to lay emery

Construction requirements: The second spreading amount is 1/3 of the total amount, the spreading direction is perpendicular to the first, and the second leveling work is performed. Finally, the troweling machine equipped with a blade completes the troweling work.

6, close

Construction requirements: adjust the blade inclination angle (speed and angle depending on the hardening condition) with the setting time of the concrete. The trowel operation is criss-cross (3 times or more). The corners of the corners are galvanized in the same direction with artificial steel trowels to avoid swarfing.

7, maintenance

Construction requirements: The special curing agent for the diamond floor is sprayed within 4 to 6 hours after the construction is completed.

8, construction precautions

1. When constructing the corner of a wall column, it should be vibrated and compacted, and then use artificial pulp.

3, the concrete surface elevation control is less than 3mm/2m (to have flatness guarantee measures).

4, avoid open-air operations, during the construction period and within 4 hours after the completion of construction is prohibited from contact with rain, 8 hours can open traffic

The above Jude Building Materials simply introduced the simple process of emery hardening agent. If you need more attention on operation, you can find a detailed construction plan for Xiao Bian.

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