Unlock instant, AI-driven research and patent intelligence for your innovation.

Preparation technology of recycled porous concrete prepared from road waste concrete aggregate

A waste concrete and porous concrete technology, applied in the field of concrete, can solve the problems of not reaching porous concrete, low strength of porous concrete, affecting normal use, etc., and achieve the effect of changing the pH value, increasing the strength, and improving the pH value

Inactive Publication Date: 2017-11-03
TIANJIN UNIV
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, when waste concrete is used as the aggregate of porous concrete, there are often problems of low aggregate strength and high water absorption. Direct use will lead to problems such as low strength and large shrinkage of porous concrete, thus failing to meet the requirements of porous concrete. affect its normal use

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Experiment time: October 20, 2013

[0035] Implementation location: laboratory

[0036] Room temperature: room temperature 20-25°C

[0037] Experimental equipment: vibrating screen with a gradation of 10-20, pulverizer, agitator

[0038] Experiment period: 30 days

[0039]The specific components and mass ratio of raw materials are: 1000kg of recycled aggregate, 500kg of steel slag, 250kg of cement, 4kg of polypropylene fiber, 150kg of sand, 150kg of water and 4kg of admixture. Agent, bentonite, natural rubber latex, fine iron powder, and organic flocculant are all 0.8 kg.

[0040] experiment procedure:

[0041] (1) Preparation of raw materials: 1) Preparation of recycled aggregate: use waste concrete after road reconstruction, expose it to the sun for 1-2 hours, then use a pulverizer to crush it into particles with a particle size of 45-60cm, and then expose it to the sun again After 1-2 hours, perform secondary crushing; after crushing into particles with a partic...

Embodiment 2

[0050] Experiment time: January 20, 2014

[0051] Implementation location: workshop

[0052] Room temperature: room temperature 20-25°C

[0053] Experimental equipment: vibrating screen with a gradation of 5 to 15, pulverizer, agitator

[0054] Experiment period: 35 days

[0055] The specific components and mass ratio of raw materials are: recycled aggregate 1080kg, steel slag 540kg, cement 270kg, polypropylene film fiber 5kg, sand 180kg, water 180kg and admixture 5kg. , bentonite, natural rubber latex, fine iron powder, and organic flocculant are all 0.83 kg.

[0056] experiment procedure:

[0057] (1) Preparation of raw materials: 1) Preparation of recycled aggregate: use waste concrete after road reconstruction, expose it to the sun for 1-2 hours, then use a pulverizer to crush it into particles with a particle size of 45-60cm, and then expose it to the sun again After 1-2 hours, perform secondary crushing; after crushing into particles with a particle size of 30-40cm,...

Embodiment 3

[0066] Experiment time: February 20, 2014

[0067] Implementation location: laboratory

[0068] Room temperature: room temperature 20-25°C

[0069] Experimental equipment: vibrating screen with a gradation of 5 to 15, pulverizer, agitator

[0070] Experiment period: 40 days

[0071] The specific components and mass ratio of raw materials are: 1200kg of recycled aggregate, 600kg of steel slag, 300kg of cement, 6kg of polypropylene fiber, 200kg of sand, 200kg of water and 6kg of admixture. , bentonite, natural rubber latex, fine iron powder, and organic flocculant are all 1 kg.

[0072] experiment procedure:

[0073] (1) Preparation of raw materials: 1) Preparation of recycled aggregate: use waste concrete after road reconstruction, expose it to the sun for 1-2 hours, then use a pulverizer to crush it into particles with a particle size of 45-60cm, and then expose it to the sun again After 1-2 hours, perform secondary crushing; after crushing into particles with a particle ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a production process of recycled porous concrete produced with waste road concrete aggregate and belongs to the technical field of concrete. The specific components according to parts by weight include: 1000-1200 parts of recycled aggregate, 500-600 parts of steel slag, 250-300 parts of cement, 2-6 parts of polypropylene film-broken fiber, 100-200 parts of sand, 150-200 parts of water, and 2-6 parts of admixture, wherein the admixture is composed of 10-15 parts of superplasticizer, 10-15 parts of bentonite, 10-15 parts of natural rubber latex, 10-15 parts of fine iron powder, and 10-15 parts of organic flocculant. The produced porous concrete meets both national standards and the growth needs of plants, is widely applicable to both sides of a road, is protective and useful in environmental greening and is of great significance.

Description

[0001] This application is a divisional application of a Chinese invention patent application filed on April 24, 2014 with the application number 2014101654953 and the title of the invention is a porous concrete prepared from road waste concrete aggregates and its preparation process. technical field [0002] The invention relates to porous concrete and a preparation process, in particular to a preparation process of recycled porous concrete prepared from road waste concrete aggregates, and belongs to the technical field of concrete. Background technique [0003] With the development of my country's economy and the continuous deepening of urbanization, urban roads are also constantly being expanded and rebuilt, resulting in a large amount of waste concrete. The traditional treatment methods are landfill or stacking, which not only consumes a lot of construction costs such as arable land and garbage removal, but also puts a lot of pressure on environmental governance. [0004...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/00C04B20/10C04B14/06C04B18/14C04B16/06C04B111/40
CPCC04B20/1085C04B28/00C04B2111/40C04B2201/50C04B18/167C04B14/06C04B18/142C04B16/0633C04B2103/0068C04B2103/302C04B14/104C04B24/26C04B14/34C04B24/08Y02W30/91
Inventor 朱劲松宋金博
Owner TIANJIN UNIV