CN102091482A

CN102091482A - Concrete water filter pipe

Info

Publication number: CN102091482A
Application number: CN 201010599513
Authority: CN
Inventors: 崔素萍; 杜鑫; 郝挺宇; 苏波; 秦魏; 严建华
Original assignee: Beijing University of Technology; Central Research Institute of Building and Construction Co Ltd MCC Group
Current assignee: Beijing University of Technology; Central Research Institute of Building and Construction Co Ltd MCC Group
Priority date: 2010-12-22
Filing date: 2010-12-22
Publication date: 2011-06-15
Anticipated expiration: 2030-12-22
Also published as: CN102091482B

Abstract

The invention discloses a concrete water filter pipe, which belongs to the field of building materials. The concrete water filter pipe has a double-layer structure made of different materials. The outer layer of the concrete water filter pipe is made of sand-free large-pore regenerated aggregate concrete, and the inner layer of the concrete water filter pipe is made of broken brick concrete; the sand-free large-pore regenerated aggregate concrete on the outer layer is prepared by mixing the following raw materials in percentage by mass: 75 to 85 percent of regenerated coarse aggregate with a particle size of 10 to 20 millimeters, 10 to 18 percent of cement, and 5 to 7 percent of water; and the broken brick concrete on the inner layer is prepared by the following raw materials in percentage by mass: 35 to 50 percent of regenerated broken brick coarse aggregate, 10 to 15 percent of cement, 0.5 to 1 percent of fly ash, 20 to 30 percent of regenerated broken brick fine aggregate, and 14.5 to 24 percent of water. The concrete water filter pipe is high water purification quality, convenient for construction and long in service life and contributes to natural resource and environment protection due to the use of regenerated resources.

Description

A kind of concrete filter pipe

Technical field

The invention belongs to building material field, relate to a kind of new concrete filter pipe.

Background technology

Because the fast development of Building Trade in China in recent years, the demand of sandstone is also increasing, need cut into a mountain for quarrying in large quantities and pick up and wash the sand, heavy damage ecological environment.And in demolishing buildings and building construction process, produced a large amount of building wastes, show that according to relevant data we reach 300,000,000 t by the annual building waste that produces.According to the characteristics of China's building, fragment of brick, concrete block have 70% approximately in the composition of building waste, and most landfill of these rubbish or stacking are handled, if these garbage as resource just can be able to be saved exploitation, the protection environment of natural resources.

Energy savings, resource conservation are the themes of present social development, and be well-known, and it is very limited can be the human freshwater resources that use on the earth, and as the seawater of the main composition of water on the earth, but can not be by utilization easily and effectively.In China, rainwater is as a kind of important freshwater resources, and major part is not utilized, and mainly flow away along the river course, and only reservoir storage realizes by reservoir substantially.On Shanghai World's Fair in 2010, Berlin rain water collecting system has just been put on display in German shop, is subjected to people from all walks of life's extensive concern, and rainwater is also gradually by human knowledge and development and use.Yet because in rainfall, dust a large amount of in the air can be adsorbed on the water droplet, and rainwater drops to and have some foreign material again on the ground and sneak into, for example leaf, branch, other chips etc.Want use, just must purify rainwater, collect the rainwater effective and safe.

Lot of domestic and foreign experts and scholars collect rainwater and have also carried out a large amount of research, have developed the rain water collecting system of all polymorphic types, as the hydrocone type rain water collecting system etc.In numerous gathering systems, and collect rainwater purification, will adopt good gathering system, remove the impurity in the rainwater, guarantee the rainwater quality, can also not pollute other water sources simultaneously, be beneficial to retaining, for the rain water reuse provides more advantageous conditions.The normal filter pipe that adopts is removed partial impurities in rainwater is collected, and domestic research at present mainly is placed in the single layer filter system, and the material of employing has steel filter screen, filter cloth, has plenty of and open the many places window on pipe of concrete, and what have is exactly to use the steel filter screen.But all have certain defective, such as the individual layer filter screen stops up easily, the life-span is short or drainage efficient is low, water quality inferiority etc.Therefore, need a kind of drainage quality height of exploitation, the drainage goods simple, long service life of constructing.

Summary of the invention

The objective of the invention is to overcome some shortcomings of existing drainage goods, provide a kind of and make full use of regenerated resources, protection environment, realize the concrete filter pipe of high drainage quality conscientiously.

The new concrete filter pipe of the present invention's preparation is made up of the double-decker that different-thickness, different materials are formed, its outer sand-free coarse porous concrete regenerated aggregate concrete that adopts, and internal layer adopts the brickbat concrete.Outer field sand-free coarse porous concrete regenerated aggregate concrete, thickness are 60-100mm, and former material match ratio (wt%) is: regenerated coarse aggregate 75-85, particle diameter 10-20mm, cement 10-18, water 5-7; The brickbat concrete of internal layer, thickness are 30-50mm, and former material match ratio (wt%) is: regeneration brickbat coarse aggregate 35-50, cement 10-15, flyash 0.5-1, regeneration brickbat fine aggregate 20-30, water 14.5-24.

Outer sand-free coarse porous concrete regenerated aggregate concrete, porosity height (about 30%), aperture are big slightly, can guarantee passing through fast of rainwater, and profile is identical with the normal concrete water-supply-pipe, and size meets the GB requirement.Internal layer adopts the brickbat concrete, also has higher porosity (about 25%), but its aperture is less than normal, part reason is because the brickbat concrete is closely knit slightly, the another one major reason is because the special construction of common brick, there is the large quantity micropore crack its inside, and these holes are made up of intercommunicating pore and non-intercommunicating pore.The intercommunicating pore aperture is less, can guarantee the good good diafiltration of water, can also stop passing through of bulk foreign material simultaneously; Non-intercommunicating pore, because the open texture structure of clay brick, the hole wall between two holes or the porous is thinner, water also can permeate, thereby plays the function of drainage, can further purify rainwater, improves depuration quality.

Advantage of the present invention

This new concrete filter pipe is made up of the material of two-layer different porosities, water purification quality height, and easy construction, long service life is used regenerated resources simultaneously, is beneficial to protection natural resources and protection environment.

Description of drawings

Fig. 1 is radial section figure;

Fig. 2 is an axial section;

Wherein 1 is the sand-free coarse porous concrete regenerated aggregate concrete; 2 is the brickbat concrete.

The specific embodiment

Embodiment 1:

1, skin is the sand-free coarse porous concrete regenerated aggregate concrete, and thickness is 70mm, and material match ratio (wt%) is: regenerated coarse aggregate 75 (10-20mm), cement 18, water 7.

2, internal layer is the brickbat concrete, and thickness is 35mm, and material match ratio (wt%) is: regeneration brickbat coarse aggregate 35, cement 10, flyash 1, regeneration brickbat fine aggregate 30, water 24.

Moulding process:

Adopt secondary material distributing technology, in the pipe of concrete die for molding, thickness is 105mm, nominal bore diameter 900mm.

Embodiment 2:

1, skin is the sand-free coarse porous concrete regenerated aggregate concrete, and thickness is 100mm, and material match ratio (wt%) is: regenerated coarse aggregate 85 (10-20mm), cement 10, water 5.

2, internal layer is the brickbat concrete, and thickness is 30mm, and material match ratio (wt%) is: regeneration brickbat coarse aggregate 50, cement 15, flyash 0.5, regeneration brickbat fine aggregate 20, water 14.5.

Moulding process:

Adopt secondary material distributing technology, in the pipe of concrete die for molding, thickness is 130mm, nominal bore diameter 900mm.

Embodiment 3:

1, skin is the sand-free coarse porous concrete regenerated aggregate concrete, and thickness is 60mm, and material match ratio (wt%) is: regenerated coarse aggregate 78 (10-20mm), cement 16, water 6.

2, internal layer is the brickbat concrete, and thickness is 50mm, and material match ratio (wt%) is: regeneration brickbat coarse aggregate 35, cement 10, flyash 1, regeneration brickbat fine aggregate 30, water 24.

Moulding process:

Adopt secondary material distributing technology, in the pipe of concrete die for molding, thickness is 110mm, nominal bore diameter 900mm.

Embodiment 4:

2, internal layer is the brickbat concrete, and thickness is 35mm, and material match ratio (wt%) is: regeneration brickbat coarse aggregate 40, cement 14, flyash 1, regeneration brickbat fine aggregate 27, water 18.

Moulding process:

Embodiment 5:

1, skin is the sand-free coarse porous concrete regenerated aggregate concrete, and thickness is 70mm, and material match ratio (wt%) is: regenerated coarse aggregate 85 (10-20mm), cement 10, water 5.

Moulding process:

Claims

1. a concrete filter pipe is characterized in that, form by the double-decker that different materials is formed, and its outer sand-free coarse porous concrete regenerated aggregate concrete that adopts, internal layer adopts the brickbat concrete; Outer field sand-free coarse porous concrete regenerated aggregate concrete, former material fit quality percentage is: regenerated coarse aggregate 75-85, particle diameter 10-20mm, cement 10-18, water 5-7; The brickbat concrete of internal layer, former material fit quality percentage is: regeneration brickbat coarse aggregate 35-50, cement 10-15, flyash 0.5-1, regeneration brickbat fine aggregate 20-30, water 14.5-24.

2. according to a kind of concrete filter pipe of claim 1, it is characterized in that outer layer thickness is 60-100mm, interior layer thickness is 30-50mm.