Road well lid repair material
A road and aggregate technology, used in sustainable waste treatment, solid waste management, climate sustainability, etc., can solve the problems of long maintenance time, short service life, rapid strength decline, etc., to achieve good wear resistance, flow Good sex, the effect of increasing the density
Active Publication Date: 2021-07-16
北京东峰兴达耐火材料有限公司
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Problems solved by technology
[0003] For this reason, the technical problem to be solved by the present invention is to provide a road manhole cover emergency repair material to solve the problems of long maintenance time, rapid strength decline, poor wear resistance and short service life after the existing road emergency repair material is laid.
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[0018] In this embodiment, the road manhole cover emergency repair material is composed of aggregate, silicon carbide fine powder, cement, silica fume and admixture; wherein, the aggregate is 650kg, the silicon carbide fine powder is 145kg, the electric melting 50 cement is 88kg, and the silica fume is 73kg Elkem silica fume, the admixture is 16.4kg. The aggregate is composed of 202kg of 75# silicon carbide with a particle size of 0.074mm<d≤1mm, 238kg of 75# silicon carbide with a particle size of 1mm<d≤5mm, and 210kg of 75# silicon carbide with a particle size of 5mm<d≤10mm. The 75# The mass fraction of SiC in silicon carbide is 75%; the silicon carbide fine powder passes through a 200-mesh sieve; the silicon carbide aggregate is silicon carbide waste obtained after crushing waste slide plates, and the silicon carbide fine powder is waste kiln furniture The silicon carbide waste obtained after crushing; the mass fraction of SiC in the silicon carbide fine powder is 75wt%; the...
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Abstract
The invention discloses a road well lid repair material which is composed of aggregate, silicon carbide fine powder, cement, silica fume and an additive. The material comprises the following components in parts by weight: 63.7 to 70.4 parts of aggregate, 14.3 to 15.8 parts of silicon carbide fine powder, 8.6 to 9.5 parts of cement, 7.1 to 7.9 parts of silica fume and 1.49 to 1.65 parts of additive. The initial setting time of the road well lid repair material is 4 min, the final setting time is 13 min, the compressive strength of the road well lid repair material in 30 min can reach 15 Mpa, the compressive strength of the road well lid repair material in one day can reach 30.7 Mpa, and the compressive strength of the road well lid repair material in three days can reach 34.1 Mpa. Therefore, the road well lid repair material can recover traffic within 30 minutes after rush-repair, and after the road well lid repair material is adopted to carry out rush-repair maintenance on the road surface, the road well lid repair material can achieve the color consistent with that of an original asphalt road surface without brushing asphalt oil on the surface of the road surface, so that the rush-repair time and the workload of workers are greatly saved, and the repaired pavement is good in wear resistance and long in service cycle, and the road maintenance cost is reduced.
Description
technical field [0001] The invention relates to the technical field of emergency repair materials, in particular to a road manhole cover emergency repair material. Background technique [0002] The road repair materials sold in the market basically use fast-hardening sulfoaluminate cement as the binder and ordinary sand or quartz sand as the aggregate. Using this repair material for road repair usually takes 6 hours to achieve Traffic conditions, and it is necessary to paint a layer of asphalt oil on the repaired road surface to keep it consistent with the original asphalt pavement, which is time-consuming and labor-intensive, seriously affecting the smooth flow of road traffic! In addition, due to the use of fast-hardening sulfoaluminate cement as a binder, the strength of the repaired pavement will decrease rapidly in the later stage, the wear resistance is poor, and the service life is basically only about 6 months. Contents of the invention [0003] Therefore, the tec...
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IPC IPC(8): C04B28/06C04B18/16C04B22/06C04B20/00C04B14/02C04B16/06C04B111/20C04B111/72C04B111/82
CPCC04B28/06C04B18/165C04B40/0039C04B2111/72C04B2111/2038C04B2111/82C04B2201/05C04B2201/50C04B18/146C04B14/022C04B22/062C04B16/0633C04B20/0076C04B20/008Y02W30/91
Inventor 裴真西
Owner 北京东峰兴达耐火材料有限公司