A multi-layer composite structure cement blanket

Abstract

The present invention discloses a multi-layer composite structure cement blanket, comprising a fabric layer forming an outer layer of the cement blanket and an inner layer arranged in the fabric layer, wherein the inner layer comprises a material filling layer located at the bottom layer and a textile fiber skeleton layer located at the top layer, wherein the textile fiber skeleton layer is a fiber cloth filled with fast-setting special cement; the fiber cloth comprises a resin base layer and a fiber layer adhered to both sides of the resin base layer, wherein the fiber layer is woven from transverse carbon fibers, longitudinal carbon fibers and oblique polypropylene fibers. The present invention has the advantages of fast solidification speed, high strength, and can utilize engineering waste.

Description

Technical Field

[0001] The invention relates to the field of cement blankets, in particular to a cement blanket with a multi-layer composite structure. Background Art

[0002] Cement blanket is gradually being reused because of its convenience, short construction period and material saving. Traditional cement blanket is generally suitable for ordinary construction and cannot meet the needs of special construction with fast setting and high strength. Summary of the invention

[0003] In view of the above problems, the present invention provides a multi-layer composite structure cement blanket, which has the advantages of fast solidification speed, high strength and can utilize engineering waste.

[0004] The technical solution of the present invention is as follows:

[0005] A multi-layer composite structure cement blanket, comprising a fabric layer forming an outer covering of the cement blanket and an inner layer arranged in the fabric layer, wherein the inner layer comprises a material filling layer located at the bottom layer and a textile fiber skeleton layer located at the top layer, wherein the textile fiber skeleton layer is a fiber cloth filled with fast-setting special cement; the fiber cloth comprises a resin base layer and fiber layers adhered to both sides of the resin base layer, wherein the resin base layer is a PE, PP or PET material, and the fiber layer is woven from transverse carbon fibers, longitudinal carbon fibers and oblique polypropylene fibers.

[0006] The working principle of the above technical solution is as follows:

[0007] The cement blanket of the present invention adopts a multi-layer composite structure with inner and outer coverings. The outer fabric layer ensures the overall stability, and the internal material filling layer and textile fiber skeleton layer are used to improve the overall strength of the cement blanket. In addition, the present invention adopts fast-setting special cement, which can quickly generate a strength of more than 40MPa after watering for 4 hours, which can meet the needs of special combat preparations, solving the technical problem that traditional cement blankets cannot meet the needs of fast-setting and high-strength special construction.

[0008] In a further technical solution, the fast-setting special cement includes the following raw materials in parts by weight: 25-40 parts of super fast hardening aluminate cement, 10-15 parts of silicate cement, 50-60 parts of sand, 5-8 parts of succinic acid, 1-2 parts of water reducer and 5-10 parts of microsilica powder.

[0009] In a further technical solution, a reinforcing mesh layer is provided between the inner wall of the fabric layer and the outer wall of the built-in layer, which can further improve the overall strength of the cement blanket.

[0010] In a further technical solution, the reinforcing mesh layer is a steel wire frame structure.

[0011] In a further technical solution, the material filling layer is engineering waste including crushed cement or crushed sand, and the engineering waste is recycled, which not only saves engineering costs but also improves environmental protection.

[0012] The beneficial effects of the present invention are:

[0013] 1. The cement blanket of the present invention adopts a multi-layer composite structure with inner and outer coverings. The outer fabric layer ensures the overall stability, and the inner material filling layer and textile fiber skeleton layer are used to improve the overall strength of the cement blanket. In addition, the present invention adopts fast-setting special cement, which can quickly generate a strength of more than 40MPa after watering for 4 hours, which can meet the needs of special combat preparations;

[0014] 2. The cement blanket of the present invention utilizes engineering waste materials such as broken cement and broken sand, which not only saves engineering costs but also improves environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic structural diagram of a multi-layer composite structure cement blanket according to an embodiment of the present invention.

[0016] Description of reference numerals:

[0017] 10. Fabric layer; 20. Reinforcement mesh layer; 30. Material filling layer; 40. Textile fiber skeleton layer. DETAILED DESCRIPTION

[0018] The embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0019] Example:

[0020] like Figure 1 As shown, a multi-layer composite structure cement blanket includes a fabric layer 10 forming an outer layer of the cement blanket and an inner layer arranged in the fabric layer 10, the inner layer includes a material filling layer 30 located at the bottom layer and a textile fiber skeleton layer 40 located at the top layer, and the textile fiber skeleton layer 40 is a fiber cloth filled with fast-setting special cement.

[0021] The working principle of the above technical solution is as follows:

[0022] The cement blanket of the present invention adopts a multi-layer composite structure with inner and outer coverings. The outer fabric layer 10 ensures the overall stability, and the internal material filling layer 30 and the textile fiber skeleton layer 40 are used to improve the overall strength of the cement blanket. In addition, the present invention adopts fast-setting special cement, which can quickly generate a strength of more than 40 MPa after 4 hours of watering, which can meet the needs of special war preparations, solving the technical problem that traditional cement blankets cannot meet the needs of fast-setting and high-strength special construction.

[0023] 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 PE, PP or PET material, and the fiber layers are woven from transverse carbon fibers, longitudinal carbon fibers and oblique polypropylene fibers.

[0024] In this embodiment, the fast-setting special cement includes the following raw materials in parts by weight: 30 parts of ultra-fast hardening aluminate cement, 12 parts of silicate cement, 55 parts of sand, 6 parts of succinic acid, 1 part of water reducer and 7 parts of microsilica powder.

[0025] In another embodiment, the formula of the fast-setting special cement can also be adjusted to: 25 parts of super fast hardening aluminate cement, 10 parts of silicate cement, 50 parts of sand, 5 parts of succinic acid, 1 part of water reducer and 5 parts of microsilica powder.

[0026] In another embodiment, the formula of the fast-setting special cement can also be adjusted to: 40 parts of super fast hardening aluminate cement, 15 parts of silicate cement, 60 parts of sand, 8 parts of succinic acid, 2 parts of water reducer and 10 parts of microsilica powder.

[0027] In another embodiment, based on the above embodiment, the formula of the fast-setting special cement further includes 2 parts of an expansion agent, so that the fast-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.

[0028] In another embodiment, based on the above embodiment, the formula of fast-setting special cement also includes 1.5 parts of foaming agent.

[0029] In another embodiment, based on the above embodiment, the formula of fast-setting special cement further includes 1.5 parts of air entraining agent.

[0030] In another embodiment, if Figure 1 As shown, a reinforcing mesh layer 20 is provided between the inner wall of the fabric layer 10 and the outer wall of the built-in layer, which can further improve the overall strength of the cement blanket.

[0031] In another embodiment, the reinforcing mesh layer 20 is a steel wire frame structure.

[0032] In another embodiment, the material filling layer 30 is engineering waste including crushed cement or crushed sand. The engineering waste is recycled, which not only saves engineering costs but also improves environmental protection.

[0033] The above-mentioned embodiments only express the specific implementation of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A multi-layer composite structure cement blanket, characterized in that: It includes a fabric layer forming an outer layer of the cement blanket and an inner layer arranged in the fabric layer, wherein the inner layer includes a material filling layer located at the bottom layer and a textile fiber skeleton layer located at the top layer, wherein the textile fiber skeleton layer is a fiber cloth filled with fast-setting special cement; the fiber cloth includes a resin base layer and fiber layers adhered to both sides of the resin base layer, wherein the fiber layer is woven from transverse carbon fibers, longitudinal carbon fibers and oblique polypropylene fibers; The fast-setting special cement comprises the following raw materials in parts by weight: 25-40 parts of fast-hardening aluminate cement, 10-15 parts of silicate cement, 50-60 parts of sand, 5-8 parts of succinic acid, 1-2 parts of water reducing agent and 5-10 parts of microsilica powder.

2. A multi-layer composite structure cement blanket according to claim 1, characterized in that: A reinforcing mesh layer is arranged between the inner wall of the fabric layer and the outer wall of the built-in layer.

3. A multi-layer composite structure cement blanket according to claim 2, characterized in that: The reinforcing mesh layer is a steel wire frame structure.

4. The multi-layer composite structure cement blanket according to claim 1, characterized in that: The material filling layer is engineering waste including crushed cement or crushed sand.

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