Pavement concrete modifier and application thereof

Abstract

The invention discloses a pavement concrete modifier and application thereof. The pavement concrete modifier is prepared from the following components in parts by mass: 5-7 parts of colloidal silicon dioxide with the solid content of 15-50%, 5-7 parts of a siloxane water repellent, 0.05-0.1 part of an active exciting agent, 0.5-1 part of a silane coupling agent and 30-40 parts of water. The modifier and the concrete form stable covalent bonds under the combined action of colloidal silicon dioxide, the siloxane water repellent, the active activator and the silane coupling agent, so that the pavement has the hydrophobic property and is prevented from being corroded and damaged by pollution such as rainwater. Meanwhile, fine particles of colloidal silicon dioxide can physically fill micro spaces among cement particles, and the filling compactness is improved, so that the early strength and durability of the concrete are improved, and the wear resistance and skid resistance of the road concrete are improved.

Description

technical field [0001] The invention relates to the technical field of concrete modifiers for road construction, in particular to a road concrete modifier and its application. Background technique [0002] Cement concrete pavement is a kind of high-grade pavement. In recent years, it has occupied a considerable proportion in the road construction in my country, especially in the road sections with heavy traffic and heavy axle load. Due to pollution control and sand control in recent years, natural sand cannot be exploited, and machine-made sand has been widely used in engineering. Machine-made sand can greatly relieve the pressure in areas where natural sand resources are scarce. [0003] Compared with natural river sand, machine-made sand has more needle-like particles, which are prone to structural defects such as insufficient compactness and large void ratio, resulting in a decrease in the durability and anti-skid performance of machine-made sand cement concrete on the pa...

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is that the current concrete modifier applied to road construction still has the problems of poor wear resistance and skid resistance, and short service life of the road surface. The purpose is to provide a road concrete modifier and its application, solve the above problems

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