Cement-based material functionally gradient brick and preparation method thereof

Abstract

The invention relates to a cement-based material functionally gradient brick. The functionally gradient brick has an upper functionally gradient layer and a lower functionally gradient layer, i.e. a cement-based material toughening layer and a cement concrete base layer respectively. The fiber cement based material toughening layer is a fiber mortar layer, the cement concrete base layer is a fine aggregate concrete layer, and the vertical direction of the functionally gradient brick is a Z shaped section; the materials of the fiber mortar layer include a cementitious material, fine aggregate, water, a water reducing agent and fiber; the raw materials of the fine aggregate concrete layer include a cementitious material, coarse aggregate, fine aggregate and water. The invention also provides a preparation method of the cement-based material functionally gradient brick. The invention provides the functionally gradient brick and a preparation method thereof, and the functionally gradient brick can alleviate uneven pavement settlement, maintain the pavement shrinkability, at the same time reduces permeation of pavement water to roadbed, and has good breaking resistance and surface freeze-thawing damage resistance, and is suitable for industrial production, thereby reducing pavement diseases.

Description

technical field

[0001] The invention belongs to the technical field of building engineering materials, and relates to a cement-based functional gradient brick and a preparation method thereof. Background technique

[0002] In the past ten years, with the continuous acceleration of my country's urban modernization process and the continuous improvement of environmental beautification requirements, the ground of sidewalks and squares is mostly paved with cement concrete square bricks or stone floor tiles. Based on the current construction technology and quality management status, as well as the technological requirements for reserved expansion joints between the floor tiles and the characteristics of the general roadbed construction process, uneven settlement and water accumulation at the base of the pedestrian pavement, loosening and warping of the pavement tiles , Subsidence, fracture, surface freeze-thaw damage and other common diseases affect the beauty of the road and the...

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