Overview

Hardened floor is commonly known as emery floor. It is a uniform distribution of wear-resistant aggregate on the concrete surface in the initial setting stage and is specially machined to form a whole with concrete, so as to obtain wear resistance with good wear resistance, dustproof and beautiful effect. Harden the floor. The hardened floor can be divided into metal and non-metal according to the aggregate, composed of cement and hardened mineral aggregate or very wear-resistant non-ferrous metal aggregate and special additives.

Characteristic

Make the ground extremely hard, wear resistant and impact resistant

Forming an integral bond with the concrete base

Prevent all kinds of oil and grease from eroding.

Use

Applicable to all kinds of ground decoration such as factory, workshop, warehousing, logistics, parking lot, etc., which need wear resistance and pressure resistance.

Construction instructions

The hardened floor construction is done after the concrete floor is leveled and the bleeding is removed and the surface finish is completed.

The hardened floor construction should be completed by professionals who operate specialized mechanical boring operations. The main points are as follows:

First, remove the floating slurry - evenly destroy the floating layer of the concrete surface.

Second, the spreading material - after the float is removed, the specified amount of wear-resistant material is evenly distributed twice (2/3, 1/3) on the concrete surface in the initial setting stage. After the first spreading operation is completed, after the wear-resistant material has received a certain amount of water, the screeding machine with the disc is added. Then, the wear-resistant material is hardened to a certain stage, and a second material spreading operation is performed.

Third, the disc operation - after the second spreading of the material, after the wear-resistant material absorbs a certain amount of water, and then at least twice the installation of the disc screed machine operation. The screeder should be run vertically and horizontally.

Fourth, smoothing operation - in the future work, according to the hardening of the concrete, at least three trowel operations without the installation of a disc. The speed of the trowel and the change of the angle of the iron plate shall be adjusted according to the hardening of the concrete platform. The screeder should be run vertically and horizontally.

Fifth, the surface smearing operation - the final modification of the surface of the wear-resistant material is done using a driving type mechanical trowel or manual boring.

Sixth, the ground maintenance - 5 to 6 hours after the completion of the wear-resistant material on the ground, using the method of coating the surface of the curing agent to prevent the rapid evaporation of the surface moisture, to ensure the steady growth of the strength of the wear-resistant material, maintenance The time is more than 7 days.

Unloading and shrinking seam cutting, filling

The unloading operation can be carried out the next day after the hardened material floor is completed. When unloading the mold, care should be taken not to damage the edge of the platform. After hardening the surface of the floor for 2 days, the cutting shrinkage joint is designed according to the relevant national regulations and the actual conditions of the floor. The cutting depth is not less than 1/3 of the concrete thickness and the width is 3-5 mm. The slit spacing shall be cut according to the site layout and design requirements, and the seam spacing shall not exceed 36m2.

Time of use

Depending on the environment and the material of the cement, it is usually walkable for 24-48 hours, light load for 7-10 days, and normal use after 28 days.