阅读说明：本技术 一种多层复合结构水泥毯 (Multilayer composite structure cement blanket ) 是由 杨晓强 杨俊峰 王兰华 杨邦虎 于 2021-01-19 设计创作，主要内容包括：本发明公开了一种多层复合结构水泥毯,包括形成水泥毯外包层的织物层和设于织物层内的内置层,所述内置层包括位于底层的物料填充层和位于顶层的纺织纤维骨架层,所述纺织纤维骨架层为填充有快凝特种水泥的纤维布；所述纤维布包括树脂基层和粘附在树脂基层两侧的纤维层,所述纤维层由横向碳纤维、纵向碳纤维和斜向聚丙烯纤维编织而成。本发明具有凝固速度快、强度高,同时可对工程废料进行利用的优点。(The invention discloses a cement blanket with a multi-layer composite structure, which comprises a fabric layer forming an outer cladding layer of the cement blanket and a built-in layer arranged in the fabric layer, wherein the built-in layer comprises a material filling layer positioned at the bottom layer and a textile fiber framework layer positioned at the top layer, and the textile fiber framework layer is fiber cloth filled with quick-setting special cement; the fiber cloth comprises a resin base layer and fiber layers adhered to two sides of the resin base layer, wherein the fiber layers are formed by weaving transverse carbon fibers, longitudinal carbon fibers and oblique polypropylene fibers. The invention has the advantages of high solidification speed and high strength, and can utilize engineering waste materials.)

1. The cement blanket with the multilayer composite structure is characterized by comprising a fabric layer forming an outer cladding layer of the cement blanket and a built-in layer arranged in the fabric layer, wherein the built-in layer comprises a material filling layer positioned at the bottom layer and a textile fiber framework layer positioned at the top layer, and the textile fiber framework layer is fiber cloth filled with quick-setting special cement; the fiber cloth comprises a resin base layer and fiber layers adhered to two sides of the resin base layer, wherein the fiber layers are formed by weaving transverse carbon fibers, longitudinal carbon fibers and oblique polypropylene fibers.

2. The cement blanket with a multilayer composite structure as claimed in claim 1, wherein the rapid-setting special cement comprises the following raw materials in parts by weight: 25-40 parts of ultra-fast hardening and setting adjusting aluminate cement, 10-15 parts of portland cement, 50-60 parts of sand, 5-8 parts of succinic acid, 1-2 parts of a water reducing agent and 5-10 parts of silica fume.

3. The cement blanket with a multi-layer composite structure as claimed in claim 1, wherein a reinforcing mesh layer is arranged between the inner wall of the fabric layer and the outer wall of the built-in layer.

4. A multi-layered composite structural cementitious blanket as defined in claim 3 in which said reinforcing mesh layer is of steel wire framework construction.

5. The multi-layered composite structural cementitious blanket as claimed in claim 1 wherein said material fill layer is engineering waste including crushed cement or crushed sand material.

Technical Field

The invention relates to the field of cement blankets, in particular to a cement blanket with a multilayer composite structure.

Background

The cement blanket is gradually reused due to convenient use, short construction period and material saving. The traditional cement blanket is generally suitable for common construction and cannot meet the requirements of special construction with quick setting and high strength.

Disclosure of Invention

Aiming at the problems, the invention provides the cement blanket with the multilayer composite structure, which has the advantages of high solidification speed and high strength and can utilize engineering waste materials.

The technical scheme of the invention is as follows:

a cement blanket with a multi-layer composite structure comprises a fabric layer forming an outer cladding layer of the cement blanket and a built-in layer arranged in the fabric layer, wherein the built-in layer comprises a material filling layer positioned at the bottom layer and a textile fiber framework layer positioned at the top layer, and the textile fiber framework layer is fiber cloth filled with quick-setting special cement; the fiber cloth comprises a resin base layer and fiber layers adhered to the two sides of the resin base layer, the resin base layer is made of PE, PP or PET materials, and the fiber layers are formed by weaving transverse carbon fibers, longitudinal carbon fibers and oblique polypropylene fibers.

The working principle of the technical scheme is as follows:

the cement blanket adopts a multi-layer composite structure with an inner layer and an outer layer, the fabric layer on the outer side ensures the overall stability, the material filling layer and the textile fiber framework layer on the inner side are used for improving the overall strength of the cement blanket, and the rapid-setting special cement is adopted, so that the strength of over 40MPa can be rapidly generated after the cement blanket is watered for 4 hours, the special warfare use can be met, and the technical problem that the traditional cement blanket cannot meet the special construction use of rapid-setting high strength is solved.

In a further technical scheme, the quick-setting special cement comprises the following raw materials in parts by weight: 25-40 parts of ultra-fast hardening and setting adjusting aluminate cement, 10-15 parts of portland cement, 50-60 parts of sand, 5-8 parts of succinic acid, 1-2 parts of a water reducing agent and 5-10 parts of silica fume.

In a further technical scheme, a reinforcing net layer is arranged between the inner wall of the fabric layer and the outer wall of the built-in layer, so that the overall strength of the cement blanket can be further improved.

In a further technical scheme, the reinforcing net layer is of a steel wire frame structure.

In a further technical scheme, the material filling layer is made of engineering waste materials including broken cement or broken sand materials, and the engineering waste materials are recycled, so that the engineering cost is saved, and the environmental protection property is improved.

The invention has the beneficial effects that:

1. the cement blanket adopts a multi-layer composite structure with an inner layer and an outer layer, the fabric layer on the outer side ensures the overall stability, the material filling layer and the textile fiber framework layer on the inner side are used for improving the overall strength of the cement blanket, and the rapid-setting special cement is adopted, so that the strength of over 40MPa can be rapidly generated after the cement blanket is watered for 4 hours, and the special warfare use can be met;

2. the cement blanket provided by the invention utilizes waste engineering wastes such as broken cement and broken sand, so that the engineering cost is saved, and the environmental protection property is improved.

Drawings

Fig. 1 is a schematic structural view of a cement blanket with a multi-layer composite structure according to an embodiment of the present invention.

Description of reference numerals:

10. a fabric layer; 20. reinforcing the net layer; 30. a material filling layer; 40. a textile fiber skeleton layer.

Detailed Description

The embodiments of the present invention will be further described with reference to the accompanying drawings.

Example (b):

as shown in fig. 1, the multi-layer composite structure cement blanket comprises a fabric layer 10 forming an outer cladding layer of the cement blanket and a built-in layer arranged in the fabric layer 10, wherein the built-in layer comprises a material filling layer 30 positioned at a bottom layer and a textile fiber framework layer 40 positioned at a top layer, and the textile fiber framework layer 40 is a fiber cloth filled with quick-setting special cement.

The working principle of the technical scheme is as follows:

the cement blanket adopts a multi-layer composite structure with an inner layer and an outer layer coated, the fabric layer 10 on the outer side ensures the overall stability, the material filling layer 30 and the textile fiber framework layer 40 on the inner side are used for improving the overall strength of the cement blanket, and the rapid-setting special cement adopted by the invention can rapidly generate the strength of more than 40MPa after being watered for 4 hours, can meet the requirement of special warfare and solve the technical problem that the traditional cement blanket cannot meet the requirement of rapid-setting high-strength special construction.

In this embodiment, the fiber cloth includes a resin base layer and fiber layers adhered to both sides of the resin base layer, the resin base layer is made of PE, PP or PET, and the fiber layers are woven by transverse carbon fibers, longitudinal carbon fibers and oblique polypropylene fibers.

In this embodiment, the quick-setting special cement comprises the following raw materials in parts by weight: 30 parts of ultra-fast hardening aluminate cement, 12 parts of portland cement, 55 parts of sand, 6 parts of succinic acid, 1 part of water reducing agent and 7 parts of silica fume.

In another embodiment, the formula of the quick-setting special cement can be adjusted to: 25 parts of ultra-fast hardening and setting-adjusting aluminate cement, 10 parts of portland cement, 50 parts of sand, 5 parts of succinic acid, 1 part of water reducing agent and 5 parts of micro silicon powder.

In another embodiment, the formula of the quick-setting special cement can be adjusted to: 40 parts of ultra-fast hardening and coagulation adjusting aluminate cement, 15 parts of portland cement, 60 parts of sand, 8 parts of succinic acid, 2 parts of a water reducing agent and 10 parts of micro silicon powder.

In another embodiment, on the basis of the above embodiment, the formulation of the rapid-setting special cement further comprises 2 parts of an expanding agent, so that the rapid-setting special cement forms a closed porous structure, the diameter of the closed pores is 300 μm, and the volume expansion range is 1-50 times.

In another embodiment, on the basis of the above embodiment, 1.5 parts of foaming agent is also included in the formulation of the quick-setting special cement.

In another embodiment, on the basis of the above embodiment, 1.5 parts of air entraining agent is also included in the formula of the quick-setting special cement.

In another embodiment, as shown in fig. 1, a reinforcing mesh layer 20 is disposed between the inner wall of the fabric layer 10 and the outer wall of the inner layer, so as to further improve the overall strength of the cement blanket.

In another embodiment, the reinforcing mesh layer 20 is a wire frame structure.

In another embodiment, the material filling layer 30 is engineering waste including crushed cement or crushed sand, and the engineering waste is recycled, so that the engineering cost is saved and the environmental protection is improved.

The above-mentioned embodiments only express the specific embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.