Dense concrete slab and its manufacturing method

Abstract

The invention discloses a compact concrete slab and a manufacturing method thereof. The invention is characterized in that the compact concrete slab is a concrete mixture which is prepared from the following raw materials in parts by weight: 20-30 parts of cement, 30-60 parts of fly ash, 30-40 parts of quartz sand, 5-10 parts of water-based epoxy resin powder, 0.6-2.2 parts of cellulose ether, 5-8 parts of plant fiber and 1-5 parts of other additives. The method comprises the following steps: carrying out primary dry-type uniform stirring and mixing on the raw materials, adding 10-22 parts of water, carrying out secondary uniform stirring and mixing, and carrying out billet helical extrusion forming by a vacuum extruder; rolling to perform extension forming to obtain the final thick billet with preset thickness; and finally, cutting with a hobbing-cutter cross / transverse cutting machine to obtain the compact concrete slab with required length and width. The method can utilize abundant industrial wastes, and is low in cost due to the adoption of the energy-saving firing-free technique.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to an ultra-thin, ultra-wide, high-strength, dense smooth concrete slab technology and a manufacturing method thereof. Background technique [0002] At present, new building materials such as inorganic non-metallic thin plates, represented by ceramic thin plates, are sought after by the market because of the following advantages, especially in the decorative materials for interior and exterior walls of modern high-end buildings. use. Its advantages are: first, it can save material and logistics costs and reduce some energy consumption. Because its weight is generally only 1 / 3 of traditional ceramics, it can greatly save transportation and logistics costs. At the same time, it is light and thin, which can save more than 60% of raw material resources and correspondingly reduce part of the energy consumption in the firing process; second, its own load Small, can effectivel...

AI Technical Summary

Problems solved by technology

[0003] But at the same time, because of its corresponding shortcomings, related industries have not developed rapidly, and this kind of new material that should be optimistic is subject to certain limitations in terms of vigorous promotion and wide application.

Its disadvantages are: first, the products have higher requirements on raw materials, the acquisition of raw materials and the cost of preparation technology are higher, and the qualified rate of finished products is not high. Reduce part of the energy consumption, but because the process requires energy-consuming firing process, the overall cost is always high, resulting in the high price of the final product; second, the size of the product has certain limitations, and As the size of the manufacturing specifications increases, the cost will increase; third, some technical performance indicators of the products are low, such as low impact toughness, fragile products, and high damage rates during transportation and construction, etc.

Images