1. Material composition and performance
Concrete ground uses cement base wear-resisting material is to have low alkali cement, wear-resisting orthopaedic department, pigment, concrete admixture composition. Factory pre-packing, site manual dry sprinkling, special equipment, professional construction personnel for construction. According to normal use requirements, the amount of wear-resisting material of every square metre is 5 kilograms, thus obtaining the wear-resisting layer of thickness about 2-3 mm. This kind of ground has dust-free, open, wear resistance, hardening, impact resistance, high strength performance, so as to meet the high performance requirements of modern factories on the ground
2 Conditions should be available before construction
Before the construction begins, products, equipment and personnel should arrive on time, and arrange accommodation for construction personnel, storage of products and construction equipment and other required places. Wear-resistant floor products should be stored in a dry, clean environment, and should be waterproof, moisture-proof function, products should be placed neatly, in order to facilitate the control of the number of products. For different kinds of products, should be placed separately, and marked to distinguish, in order to avoid the construction of the wrong use. Prior to construction, necessary maintenance should be carried out on the construction equipment on site to achieve 100% of the equipment perfect rate.
2.1 Requirements of construction site environment Roof, doors and Windows must be closed, wind and rain protection work. Allow to leave a door to offer personnel, vehicle to pass only, prevent to produce draft, cause local concrete, wear-resisting material moisture dispersing to lose too fast, surface crack.
2.2 Requirements for the cushion Layer The pantoginseng soil of the cushion layer should be fully rammed and rolled to achieve smooth, solid and dense, fully meet the design requirements and avoid uneven settlement. The bedding shall be thoroughly moistened with clean water prior to concrete pouring.
2.3 Requirements for base concrete Concrete strength should be greater than C25, water cement ratio less than 0.5. Maximum aggregate size less than 30 mm. The concrete mixing site, the collapse degree control between 75-100 mm; The collapse degree of concrete is controlled between 120-140 mm.
2.4 Requirements for basic concrete construction Concrete shall be divided into warehouses. Continuous pouring according to the sequence, one-time pouring to the full warehouse, the same warehouse shall not have construction joints. To fully vibrate, avoid leakage, over vibration. Leveling concrete with disc bar and aluminum alloy scraper bar. The flatness of concrete shall meet the requirement of 2.5 mm.
