Ultrahigh-strength wear-resisting plate with cement base and production method thereof
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A wear-resistant board and cement technology, applied in sustainable waste treatment, solid waste management, climate sustainability, etc., can solve the problems of complex production process, high cost, overall shedding, etc., and achieve simple production process, construction and repair. The effect of short cycle and low cost
Inactive Publication Date: 2011-05-18
CENT RES INST OF BUILDING & CONSTR CO LTD MCC GRP +2
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Abstract
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Problems solved by technology
[0003] (1) The production process is complicated, energy consumption is high, and the cost is high. Cast stone slabs and calendered microcrystalline slabs need to be melted and then poured into shapes at high temperatures above 1000°C. Therefore, professional production equipment is required and a lot of coal or coal is consumed. Gas energy, and because it is formed at high temperature, it is impossible to install various connectors on the plate;
[0004] (2) The impact resistance is poor, and it is prone to cracking and damage under the impact of larger particle materials such as ore and coal, and then causes problems such as overall shedding;
[0005] (3) The thermal expansion coefficient of the foundation differs greatly, and the deformation of the wear-resistant layer and the foundation is inconsistent during the temperature change process, forming interface stress, resulting in loosening and falling off of the wear-resistant lining;
[0006] (4)
Method used
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Embodiment 1
[0022] Select 100 kg of ordinary Portland cement, 20 kg of silica fume and mineral powder, 2 kg of polycarboxylate superplasticizer, 300 kg of quartz sand, 5 kg of ordinary steel fiber, 3 kg of organic fiber, and 22 kg of water.
[0023] First, accurately weigh and stir all components except water in proportion, add water and continue to stir until uniform, then pour into the mold for molding. After molding, put it in a room at about 20°C for 1 day, then demould it, then put it in hot water at 60°C for 3 days, and then you can get the required wear-resistant plate.
Embodiment 2
[0025] Select 80 kg of ordinary Portland cement, 10 kg of silica fume, 40 kg of fly ash, 5 kg of polycarboxylate superplasticizer, 250 kg of machine-made sand, 10 kg of I-shaped special-shaped steel fiber, and 30 kg of water.
[0026] First, accurately weigh and stir all components except water in proportion, add water and continue to stir until uniform, then pour into the mold for molding. After forming, put it in a room at about 20°C for 1 day, then remove the mold, and then transfer it to steam for 3 days.
Embodiment 3
[0028] Select 70 kg of ordinary Portland cement, 20 kg of silica fume, 10 kg of fly ash, 3 kg of polycarboxylate superplasticizer, 300 kg of steel slag after hot stuffing treatment, 10 kg of steel fiber, 2 kg of organic fiber, and 18 kg of water. Kilogram.
[0029] Accurately weigh and stir all components except water first, add water and continue to stir until uniform, then pour into the mold for molding. After molding, put it in a room at about 20°C for 1 day, then remove the mold, and then put it in hot water at 90°C for 3 days. The wear-resistant plate produced by adopting the ratio and process has the highest compressive strength and the lowest wear loss.
[0030] The performance of the cement-based ultra-high-strength wear-resistant plate made in embodiment 1-3 is as follows:
[0031]
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Abstract
The invention provides an ultrahigh-strength wear-resisting plate with a cement base, which comprises the following components: 50-100 weight parts of cement, 0-50 weight parts of mineral blending material, 1-5 weight parts of water reducing agent, 100-400 weight parts of wear aggregate, 0-20 weight parts of steel fiber, 0-10 weight parts of organic fiber and 15-30 weight parts of water. The production method of the ultrahigh strong-wear plate with the cement base provided by the invention comprises the following steps: weighing each component according to the ratio; uniformly stirring the components except the water; continuously stirring the components to a uniform state after the water is added; placing the mixture into a die for artesian molding or vibration molding; arranging a connecting piece or reserving a hole on the molding surface of a plate according to the requirements; carrying out the maintenance for 1 day at the normal temperature after the molding and carrying out thedemolding; and carrying out the maintenance with hot water at the temperature no lower than 50 DEG C for 1-3 days, or carrying out the maintenance with steam for 1-3 days to prepare the strong-wear plate. In the invention, the plate with large compressive strength, large impact strength and small wear loss amount can be obtained, the connecting piece can be installed or the hole is reserved, and the plate has the advantages of simple production process, low cost, and short construction and repair period.
Description
technical field [0001] The invention relates to a cement-based wear-resistant plate and its production process. This plate can replace the cast stone plate and calendered microcrystalline plate used in large quantities at present, and is used for storage bins, hoppers, ore troughs, slag flushing ditch, wear-resistant floors, etc. The surface layer of various parts with wear-resistant requirements. Background technique [0002] At present, in metallurgy, coal, electric power, building materials and other industries, in order to protect the basic steel plate or basic concrete from the wear and tear of materials, it is necessary to set up a wear-resistant protective layer on its surface. At present, the most widely used wear-resistant protective layer is cast stone plate and calendered microcrystalline plate. These two plates have significant shortcomings in the process of production and application, mainly in: [0003] (1) The production process is complicated, energy consump...
Claims
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Application Information
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