Straw fiber reinforced foam concrete and preparation method thereof

A foamed concrete and straw fiber technology is applied in the field of building materials to achieve high mechanical strength, good heat insulation effect and small voids.

Active Publication Date: 2014-11-05
MAANSHAN MCC17 ENG TECH CO LTD
View PDF2 Cites 36 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the technical problems existing in the existing foam concrete, the present invention provides straw fiber reinforced foam concrete and a preparation method thereof

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

[0033] Take the raw material according to the following parts by weight:

[0034] 42.5MPa ordinary Portland cement 45, iron tailings fine powder 15, expanded vermiculite 5, straw fiber 0.1, 30% hydrogen peroxide solution 6, sodium lauryl sulfate 2, gelatin 0.08, 30% potassium permanganate solution 0.4 , 200000 Pa.S hydroxypropyl methylcellulose 0.2, water 30.

[0035] The preparation method of the foamed concrete reinforced by straw fiber is as follows:

[0036] (1) Put the cement required for batching, iron tailings slag powder, straw fiber, and hydroxypropyl methylcellulose together and stir for 3 minutes, and then mix according to the water and 30% hydrogen peroxide required for batching solution, gelatin, and 30% potassium permanganate aqueous solution were added therein in sequence, and the stirring was continued for 6 minutes to obtain a slurry mixture;

[0037] (2) Add expanded vermiculite in saturated surface-dry state to the slurry mixture obtained in step...

Embodiment 2

[0040] Take the raw material according to the following parts by weight:

[0041] 42.5MPa ordinary portland cement 50, iron tailings fine powder 15, expanded vermiculite 3, straw fiber 0.2, 30% hydrogen peroxide solution 5, sodium lauryl sulfate 3, gelatin 0.06, 30% potassium permanganate solution 0.3 , 200000 Pa.S hydroxypropyl methylcellulose 0.2, water 35.

[0042] The preparation method of the foamed concrete reinforced by straw fiber is as follows:

[0043] (1) Put the cement required for batching, iron tailings slag powder, straw fiber, and hydroxypropyl methylcellulose together and stir for 3 minutes, and then mix according to the water and 30% hydrogen peroxide required for batching solution, gelatin, and 30% potassium permanganate aqueous solution were added therein in sequence, and the stirring was continued for 6 minutes to obtain a slurry mixture;

[0044] (2) Add saturated surface-dried expanded vermiculite to the slurry mixture obtained in step (1), a...

Embodiment 3

[0047] Take the raw material according to the following parts by weight:

[0048] 42.5MPa ordinary Portland cement 60, lead-zinc tailings fine powder 10, expanded vermiculite 3, straw fiber 0.2, 30% hydrogen peroxide solution 8, sodium lauryl sulfate 4, gelatin 0.1, 30% potassium permanganate aqueous solution 0.4, 200000 Pa.S hydroxypropyl methylcellulose 0.2, water 40.

[0049] The preparation method of the foamed concrete reinforced by straw fiber is as follows:

[0050] (1) Put the cement required for batching, iron tailings slag powder, straw fiber, and hydroxypropyl methylcellulose together and stir for 3 minutes, and then mix according to the water and 30% hydrogen peroxide required for batching solution, gelatin, and 30% potassium permanganate aqueous solution were added therein in sequence, and the stirring was continued for 6 minutes to obtain a slurry mixture;

[0051] (2) Add saturated surface-dried expanded vermiculite to the slurry mixture obtained in ...

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
particle diameteraaaaaaaaaa
lengthaaaaaaaaaa
compressive strengthaaaaaaaaaa
Login to view more

Abstract

The invention discloses straw fiber reinforced foam concrete and a preparation method thereof, and belongs to the technical field of building materials. The straw fiber reinforced foam concrete comprises the following components by mass: 40-80 parts of a cementitious material; 1-20 parts of a fine lightweight aggregate; 0.05-0.6 part of straw fiber; 2-8 parts of a chemical foaming agent; 0.5-4 parts of a physical foaming agent; 0.02-0.14 part of a foam stabilizing agent; 0.1-0.8 part of a catalyst; 0.05-0.6 part of a thickening agent and 15-30 parts of water. The preparation method is as follows: mixing and stirring the cementitious material, the straw fiber and the thickening agent, then adding the water, the chemical foaming agent, the foam stabilizing agent and the catalyst, stirring to obtain a slurry mixture, then adding expanded vermiculite, stirring to obtain chemically foamed foam concrete; adding the physical foaming agent into the chemically foamed foam concrete, stirring, pouring into a mould, and demoulding after concrete is solidified and hardened to prepare the straw fiber reinforced foam concrete. The straw fiber reinforced foam concrete has a more uniform multihole structure, and the water proof, sound insulation and heat insulation effects are better than that of foam concrete in the prior art.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to straw fiber reinforced foam concrete and a preparation method thereof. Background technique [0002] Foamed concrete, also known as foamed cement, lightweight concrete, etc., is a new type of building energy-saving material that is waste-friendly, environmentally friendly, energy-saving, cheap and non-combustible. Its density generally fluctuates between 300-1200kg / m 3 Among them, because the foamed concrete contains a large number of closed small pores, it has good thermal insulation performance, which is not available in ordinary concrete. Usually the density level is 400 kg / m 3 The thermal conductivity of foamed concrete in the above range is between 0.08-0.27w / (m·k), and the thermal resistance is about 10-20 times that of ordinary concrete. The use of foam concrete as building wall and roof materials has good energy-saving effect. The polystyre...

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 Applications(China)
IPC IPC(8): C04B38/02C04B38/10C04B28/08C04B18/24
CPCY02W30/91
Inventor 钱元弟李亚辉雷团结王孝平黄维军周杨王慧陈贺
Owner MAANSHAN MCC17 ENG TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap