Contraction-free cement grout material

A cement grouting and non-shrinkage technology, which is applied in the field of cement grouting materials, can solve the problems of unspecified grouting materials, and achieve the effects of low cost, good self-flowing property and wide adaptability

Inactive Publication Date: 2011-09-07
浙江五龙新材股份有限公司
View PDF6 Cites 26 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the equipment foundation of heavy machinery is damaged and needs to be replaced or repaired urgently, the repair grouting of road bridge joints, the rapid grouting of high-speed railway bridge bearings, the repair of airport roads, etc., all require grouting materials with early strength and high strength. That is, it can reach more than 20MPa within 1-6h, but the patent does not give the grouting material suitable for this situation

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
  • Contraction-free cement grout material
  • Contraction-free cement grout material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Embodiment 1: according to weight percentage, the formula of this grouting material is:

[0034] High alumina cement: 20.0%,

[0035] 52.5R cement: 22.0%,

[0036] Anhydrite: 5.0%,

[0037] Expanding agent: 5.45%,

[0038] Water reducer: 1.5%,

[0039] Coagulant: 0.05%,

[0040] Shrinkage reducer: 0.99%,

[0041] Thickener: 0.01%,

[0042] Aggregate: 45.0%.

[0043] The product of this embodiment is mainly used in projects with high early strength requirements, such as replacement or emergency repair of heavy machinery and equipment foundations, emergency repair grouting of road bridge joints, rapid grouting of high-speed railway bridge bearings, and the strength can exceed 20MPa within 6 hours. Simple, safe and reliable.

Embodiment 2

[0044] Embodiment 2: according to weight percentage, the formula of this grouting material is:

[0045] 42.5 Cement: 45.0%,

[0046] Silica fume: 3.0%,

[0047] Expanding agent: 5.0%,

[0048] Water reducer: 1.0%,

[0049] Shrinkage reducer: 0.99%,

[0050] Thickener: 0.01%,

[0051] Aggregate: 45.0%.

[0052] The product of this embodiment is mainly used for anchoring of anchor bolts, cutting and embedding steel bars, secondary grouting of equipment foundations with a grouting layer thickness of 30mm<δ<200mm, or reinforcement of beams, slabs, columns, foundations and floors of buildings ( Repair thickness ≥ 40mm).

Embodiment 3

[0053] Embodiment 3: according to weight percentage, the formula of this grouting material is:

[0054] 52.5R cement: 5.0%,

[0055] 42.5 Cement: 25.0%,

[0056] Silica fume: 3.0%,

[0057] Expanding agent: 5.0%,

[0058] Water reducer: 1.0%,

[0059] Aggregate: 61.0%.

[0060] The product of this embodiment is mainly used for the grouting needs of high-precision and complex structural equipment, and the grouting parts do not leave dead angles, and have good stability.

[0061] Table 1 The performance of the grouting material obtained in the examples

[0062]

[0063] Table 2 The compressive strength ratio of the grouting materials obtained in the examples at negative temperature

[0064]

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 relates to the field of cement grout materials, in particular relating to a property-adjustable functional contraction-free cement grout material. The contraction-free cement grout comprises the following components in percentage by weight: 30.0%-6.0% of gelled material, 0%-5.0% of anhydrite, 4.0%-6.0% of expanding agent, 0.6%-1.5% of water reducing agent, 0%-0.09% of coagulant, 0%-2% of shrinkage agent, 0%-0.06% of thickener and 40.0%-65.0% of aggregate. The grout material has the advantages of good self-flowability, no sedimentation, no bleeding, minimum inflation and no obvious contraction phenomenon; the property of the grout material can be adjusted at random according to the requirement of a building, thus the grout material is wide in adaptability, low in cost, flexible to operate and convenient to use; and the grout material can be suitable for aid repair engineering with a high strength requirement at early period, can be used for a common grout material with a general requirement, and also can be used for a superfluid grout material with large flowability.

Description

technical field [0001] The invention belongs to the field of cement grouting materials, and in particular relates to a multifunctional non-shrinkage cement grouting material with adjustable performance. Background technique [0002] The grouting material has the characteristics of good self-flowing property, rapid hardening, early strength, high strength, no shrinkage, and slight expansion; non-toxic, harmless, non-aging, no pollution to water quality and surrounding environment, good self-tightness, and anti-rust. In terms of construction, it has the advantages of reliable quality, reduced cost, shortened construction period and convenient use. It is a material with a wide range of uses. It has been mainly used for equipment foundation grouting at the beginning, and has developed into a series of products that can be used for various purposes such as building foundation reinforcement, building reinforcement, building beams, plates, and columns. . [0003] Some people in C...

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): C04B28/00C04B28/06C04B28/04C04B28/18
CPCC04B28/06C04B28/04C04B28/00
Inventor 王瑜玲李洪涛钱祥鲍寅森王家丰宋永良
Owner 浙江五龙新材股份有限公司
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