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

Preparation method of novel energy-saving and waste-utilizing self-thermal-insulation concrete

A self-insulation and concrete technology, applied in the field of building energy-saving materials, can solve the problems of unsatisfactory proportion and low thermal conductivity of energy-saving and waste-saving self-insulation concrete, and achieve the effect of obvious water reduction effect, low thermal conductivity and performance improvement.

Active Publication Date: 2021-11-12
JIANGSU POLYTECHNIC COLLEGE OF AGRI & FORESTRY
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Aiming at the above-mentioned technical problems, the present invention provides a new energy-saving and waste-reutilizing self-insulating concrete preparation method, which solves the problem of unsatisfactory proportioning of energy-saving and waste-reducing self-insulating concrete in the prior art, and realizes low thermal conductivity, Technical effects of high compressive strength, light weight, good durability, energy saving, waste utilization, and low price

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method of novel energy-saving and waste-utilizing self-thermal-insulation concrete
  • Preparation method of novel energy-saving and waste-utilizing self-thermal-insulation concrete
  • Preparation method of novel energy-saving and waste-utilizing self-thermal-insulation concrete

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0037] A method for preparing a new type of energy-saving and waste-reutilizing self-insulating concrete, comprising the following steps:

[0038] Step 1: Mix rock wool and penetrating agent, add primary water to soak for 30 minutes, and then add secondary water for stirring and beating, wherein the weight ratio of rock wool, primary water, secondary water and penetrating agent is 3:15:33 : 0.3, rock wool can be used as thermal insulation material discarded by power plants. 7.0μm, thermal load shrinkage temperature ≥650℃;

[0039] Step 2: Drain the rock wool after the beating treatment in step 1 for 12 hours, and perform a second beating treatment for 5 minutes to prepare rock wool slurry;

[0040] Step 3: Prepare vitrified microbeads, water reducing agent and water at a weight ratio of 1:0.01:0.5 and mix them to obtain pre-wetted vitrified microbeads, wherein the particle size of vitrified microbeads is 0.5-1.5mm. The density is 80~130kg / m 3 , the thermal conductivity is 0...

Embodiment

[0046] Determine the best mix ratio of self-insulation concrete, screen the raw materials according to the different functions of each component material in self-insulation concrete, and select a suitable mix ratio to compound materials together to make self-insulation concrete have the best mechanical properties and thermal insulation properties.

[0047] 1. Reasonable amount of mineral powder

[0048] 1. Determine the concrete mix ratio for the test

[0049] Since the influence of each component material of self-insulating concrete on its various performance indicators is relatively complicated, first determine the benchmark mix ratio for the test reference, refer to the C30 concrete mix ratio of 42.5 grade ordinary Portland cement, the water-cement ratio is 0.54, and the sand ratio is 0.54. Take 40%, the dosage of polycarboxylate superplasticizer is 1.0%, and the water consumption is 190kg / m 3 . By controlling the variable method, the water-binder ratio, sand rate, water...

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

PropertyMeasurementUnit
Diameteraaaaaaaaaa
Thermal conductivityaaaaaaaaaa
Fiber lengthaaaaaaaaaa
Login to View More

Abstract

The invention belongs to the field of building materials, and particularly relates to a preparation method of novel energy-saving and waste-utilizing self-thermal-insulation concrete. The method comprises the following steps: 1, mixing rock wool and a penetrating agent, adding primary water for soaking, and then adding secondary water for stirring and pulping treatment; 2, draining the rock wool subjected to pulping treatment in the step 1, and performing secondary pulping treatment to prepare rock wool slurry; 3, mixing and stirring glass beads, a water reducing agent and water to obtain pre-wetted glass beads; and 4, sequentially doping the rock wool slurry obtained in the step 2, cement, mineral powder, a waterproof agent, rubber powder, gravel and water into the vitrified micro bubbles obtained after pre-wetting treatment in the step 3, conducting mixing and stirring till bonding is achieved, conducting vibration forming, and finally conducting curing and drying. The self-insulation concrete has the advantages of low heat conductivity coefficient, high compressive strength, light weight, good durability, energy conservation, waste utilization, low price and the like.

Description

technical field [0001] The invention belongs to the field of building energy-saving materials, and in particular relates to a preparation method of a novel energy-saving and waste-utilizing self-insulating concrete. Background technique [0002] Building energy conservation is an important part of my country's energy and environmental protection policies in recent decades. Under the current economic conditions in my country, the external wall insulation system is the most commonly used wall insulation and energy saving system. [0003] At present, the insulation materials commonly used in the wall insulation system are mainly organic insulation materials. The apparent density and thermal conductivity of this kind of insulation material are lower, but the durability of organic insulation material is poor, and it is easy to corrode and cause environmental pollution of buildings. The shortcomings of this method of bonding thermal insulation materials on the outside of the wall...

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
IPC IPC(8): C04B28/00C04B18/14C04B111/40
CPCC04B28/00C04B18/141C04B2201/20C04B2201/32C04B2201/50C04B2111/40C04B14/24C04B2103/302C04B14/46C04B14/06C04B2103/0068C04B2103/65Y02W30/91Y02B30/90Y02A30/00
Inventor 温佳斌张伟王剑徐志霄
Owner JIANGSU POLYTECHNIC COLLEGE OF AGRI & FORESTRY