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

Cement-base anti-seepage leak-stopping material

A plugging material and cement-based technology, which is applied in the field of cement materials, can solve the problems of impermeability and plugging, and achieve excellent anti-seepage plugging performance, short setting time and high strength.

Inactive Publication Date: 2005-11-09
UNIV OF JINAN
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although the properties of this material such as setting time and strength have been improved to a certain extent, the anti-seepage performance cannot meet the requirements of anti-seepage and plugging.

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
  • Cement-base anti-seepage leak-stopping material
  • Cement-base anti-seepage leak-stopping material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The calcium sulfoaluminate clinker calcined according to the conventional method is taken, and 2% of the total amount of aluminum sulfate is added, and they are ground together to produce the anti-seepage and plugging material of this embodiment. The percentage by weight of each main component of this anti-seepage and plugging material is:

[0030] Anhydrous calcium sulfoaluminate (3CaO 3Al 2 o 3 ·CaSO 4 ): 60%

[0031] Dicalcium silicate (2CaO SiO 2 ): 34%

[0032] Iron phase (2CaO Fe 2 o 3 -6CaO·2Al 2 o 3 · Fe 2 o 3 ): 4%

[0033] Aluminum sulfate: 2%.

[0034] The material of this embodiment, its physical properties are shown in Table 2:

[0035] 1h compressive strength (MPa) 15.3

[0036] Note: The impermeability test process adopts an initial water pressure of 1MPa, adjusted to 1.5MPa after 1h, and adjusted to 2MPa after 2h, and constant pressure for 48h.

Embodiment 2

[0038] The calcium sulfoaluminate clinker calcined according to the conventional method is taken, and 5% of the total amount of aluminum sulfate is added, and they are ground together to produce the anti-seepage and plugging material of this embodiment. The percentage by weight of each main component of this anti-seepage and plugging material is:

[0039] Anhydrous calcium sulfoaluminate (3CaO·Al 2 o 3 ·CaSO 4 ): 70%

[0040] Dicalcium silicate (2CaO SiO 2 ): 15%

[0041] Iron phase (2CaO Fe 2 o 3 -6CaO·2Al 2 o 3 · Fe 2 o 3 ): 10%

[0042] Aluminum sulfate: 5%.

[0043] The material of this embodiment, its physical properties are shown in Table 3:

[0044] 1h compressive strength (MPa) 16.8

[0045] Note: The impermeability test process uses an initial water pressure of 1MPa, which is adjusted to 1.5MPa after 1h and 2MPa after 2h, and the constant pressure is 48h.

Embodiment 3

[0047] The calcium sulfoaluminate clinker calcined according to the conventional method is taken, and 3% of the total amount of aluminum sulfate is added, and they are ground together to produce the anti-seepage and plugging material of this embodiment. The weight percent of each main component of this anti-seepage plugging material is:

[0048] Anhydrous calcium sulfoaluminate (3CaO·Al 2 o 3 ·CaSO 4 ): 75%

[0049] Dicalcium silicate (2CaO SiO 2 ): 15%

[0050] Iron phase (2CaO Fe 2 o 3 -6CaO·2Al 2 o 3 · Fe 2 o 3 ): 7%

[0051] Aluminum sulfate: 3%.

[0052] The material of this embodiment, its physical properties are shown in Table 4:

[0053] 1h compressive strength (MPa) 16.2

[0054]Note: The impermeability test process adopts an initial water pressure of 1MPa, adjusted to 1.5MPa after 1h, and adjusted to 2MPa after 2h, and constant pressure for 48h.

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
strengthaaaaaaaaaa
compressive strengthaaaaaaaaaa
Login to View More

Abstract

The present invention belongs to the field of cement material technology, and is especially one kind of sulphoaluminate and barium-containing sulphoaluminate cement-base anti-seepage leak-stopping material. Sulphoaluminate clinker produced through convenient calcination is mixed with aluminum sulfate, and the mixture is ground to prepare the cement material. The material of the present invention has excellent anti-seepage leak-stopping performance, and the features of short solidification time and high strength.

Description

(1) Technical field [0001] The invention belongs to the technical field of cement materials, in particular to an anti-seepage and plugging material made of sulphoaluminate or barium-containing sulphoaluminate cement base. (2) Background technology [0002] At present, there are many kinds of anti-seepage and plugging materials on the market, with different properties. New waterproof materials such as coiled materials, paints, and ointments are fast and effective, but they have high requirements for construction, poor adaptability, and are prone to aging; traditional Portland cement-based waterproof materials, such materials have been added Admixtures generally have the characteristics of fast setting and fast hardening, but Portland cement has shortcomings such as slow hydration and shrinkage after hydration. To overcome these shortcomings, it is often necessary to mix many kinds of admixtures to obtain satisfactory results. But this in turn leads to problems such as increa...

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): C09K3/12
CPCC04B7/323
Inventor 程新叶正茂常钧芦令超黄世峰张德成徐荣华
Owner UNIV OF JINAN