A bridge abutment seepage material sandless concrete block and its manufacturing process

Abstract

The invention discloses a water permeable material non-fine concrete block for a bridge abutment. The non-fine concrete block is characterized in that the non-fine concrete block is manufactured by mixing the following components in part by weight: 1 part of concrete, 0.32 to 0.33 part of water and 5.33 to 5.55 parts of stone. The manufacturing process comprises the following steps of: uniformly stirring the concrete, the water and the stones by using a forced stirrer; injecting a mixture into a standard template; sequentially performing vibration, forming and maintenance in the template; and removing the template. The non-fine concrete block and the manufacturing process have the advantages that the non-fine concrete block is an excellent water permeable material, and the problem of incapability of draining osmotic water during the conventional bridge abutment construction can be effectively solved; the non-fine concrete block is lower in volume to weight ratio, so that convenience is brought to transportation and construction; and waste non-fine concrete blocks can be crushed to form good coarse aggregate which can be recycled.

Description

technical field

[0001] The invention relates to a building component and its manufacturing process, in particular to a filling seepage material and its manufacturing process in abutment construction. Background technique

[0002] During the construction of the abutment, the back of the abutment must be filled with water seepage material according to the specification requirements to prevent the bottom of the abutment back from accumulating water. The traditional filling water seepage material is usually graded gravel with +3% cement. This traditional Filling seepage material has the problem that seepage water cannot be discharged, and the guide for subgrade seepage is not fixed, resulting in serious slope erosion in the transition section of the bridge abutment, which has a great impact on the stability of the transition section of the bridge abutment after a long time, and has a great impact on the quality of the project. And economic benefits have a certain impact. Conte...