PVA-basalt hybrid fiber high-toughness concrete capable of realizing 3D printing and use method thereof

A technology of basalt fiber and hybrid fiber, which is applied in the field of building materials, can solve the problems of relatively low water content and high water consumption, and achieve the effects of easy dispersion, increased splitting tensile strength, and improved mechanical strength
CN108129102AActive Publication Date: 2018-06-08HEBEI UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
HEBEI UNIV OF TECH
Publication Date
2018-06-08

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Abstract

The invention relates to PVA-basalt hybrid fiber high-toughness concrete capable of realizing 3D printing and a use method thereof. Through being metered in parts by weight, the concrete is preparedfrom the following ingredients including 0.8 to 1.2 parts of fast hardening ordinary Portland cement, 0.96 to 1.44 parts of grade F fly ash, 0.64 to 0.96 part of quartz sand (with the particle diameter range being 0.075 to 0.15mm), 0.29 to 0.43 part of water, 0.005 to 0.01 part of water reducing agents, 0.0017 to 0.0018 part of PVA fiber and 0.0043 to 0.0078 part of basalt fiber. According to thematerials of the concrete, the PVA fiber and the basalt fiber are used for optimizing and improving the intensity and the toughness of the concrete material; the printing performance is high; the intensity is high; the cost is low; the practical engineering application of the 3D printing concrete can be favorably promoted.
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Description

technical field

[0001] The invention belongs to the field of building materials, and in particular relates to a 3D-printable cement-based material, and more particularly to a 3D-printable PVA-basalt hybrid fiber high-toughness concrete material. Background technique

[0002] In recent years, 3D printing technology has achieved remarkable development in the field of civil engineering. Examples of 3D printed bridges and 3D printed houses are often reported, which largely confirm the feasibility of applying 3D printing technology to the field of civil engineering. 3D printing concrete technology has also been widely concerned and promoted because of its many advantages such as design freedom, construction flexibility, fast construction speed, low labor cost, high degree of automation, and low environmental pollution. The preparation of 3D printable cement-based materials is the key to promote the application of this technology in engineering practice. However, the salient feat...

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
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