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Green super-performance cement-based material with aeolian sand and preparation method of material

A cement-based material and ultra-high-performance technology, which is applied in the field of green ultra-high-performance cement-based materials and their preparation, can solve problems such as low strength, immature application technology, and few applications of ultra-high-performance cement-based materials, so as to improve performance , good workability and good strength

Active Publication Date: 2018-08-28
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, in a large number of construction projects in western China, aeolian sand has been used to completely or partially replace natural river sand, but the application technology is not mature enough, especially in the application of ultra-high performance cement-based materials. Mainly low-strength traditional cement-based materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] A green ultra-high-performance cement-based material using aeolian sand, which comprises the following components in parts by weight:

[0047] 585.3 parts of ordinary Portland cement, 292.7 parts of fine beads, 97.6 parts of silica fume, 780.4 parts of aeolian sand, 29.3 parts of expansion agent, 195 parts of microwire steel fiber, 19.5 parts of polycarboxylate superplasticizer, and 175.6 parts of water.

[0048] Preparation:

[0049] (1) Weigh the required materials, including: ordinary Portland cement, fine beads, silica fume, aeolian sand, expansion agent, microwire steel fiber, polycarboxylate superplasticizer and tap water;

[0050] (2) Wetting the mixer and the tools and molds used;

[0051] (3) Add the weighed ordinary Portland cement, fine beads, silica fume and expansion agent into the standard cement planetary mixer in sequence, select the high-speed stirring gear, and stir at a high speed of 120S;

[0052] (4) adding the weighed aeolian sand into the mixed ...

Embodiment 2

[0056] A green ultra-high-performance cement-based material using aeolian sand, which comprises the following components in parts by weight:

[0057] 585.3 parts of ordinary Portland cement, 292.7 parts of fine beads, 97.6 parts of silica fume, 780.4 parts of aeolian sand, 29.3 parts of expansion agent, 234 parts of microwire steel fiber, 19.5 parts of polycarboxylate superplasticizer, and 175.6 parts of water.

[0058] Preparation:

[0059] (1) Weigh the required materials, including: ordinary Portland cement, fine beads, silica fume, aeolian sand, expansion agent, microwire steel fiber, polycarboxylate superplasticizer and tap water;

[0060] (2) Wetting the mixer and the tools and molds used;

[0061] (3) Add the weighed ordinary Portland cement, fine beads, silica fume and expansion agent into the standard cement planetary mixer in sequence, select the high-speed stirring gear, and stir at a high speed of 120S;

[0062] (4) adding the weighed aeolian sand into the mixed ...

Embodiment 3

[0066] A green ultra-high-performance cement-based material using aeolian sand, which comprises the following components in parts by weight:

[0067] 574.1 parts of ordinary Portland cement, 287.0 parts of fine beads, 95.7 parts of silica fume, 765.4 parts of aeolian sand, 28.7 parts of expansion agent, 195 parts of microwire steel fiber, 19.1 parts of polycarboxylate superplasticizer, and 191.4 parts of water.

[0068] Preparation:

[0069] (1) Weigh the required materials, including: ordinary Portland cement, fine beads, silica fume, aeolian sand, expansion agent, microwire steel fiber, polycarboxylate superplasticizer and tap water;

[0070] (2) Wetting the mixer and the tools and molds used;

[0071] (3) Add the weighed ordinary Portland cement, fine beads, silica fume and expansion agent into the standard cement planetary mixer in sequence, select the high-speed stirring gear, and stir at a high speed of 120S;

[0072] (4) adding the weighed aeolian sand into the mixed ...

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Abstract

The invention discloses a green super-performance cement-based material with aeolian sand and a preparation method of the material. The green super-performance cement-based material mainly consists of550-600 parts of ordinary Portland cement, 250-300 parts of fine sinking beads, 85-100 parts of silicon ash, 750-800 parts of aeolian sand, 25-30 parts of an expanding agent, 180-240 parts of a steelfiber, 18-30 parts of a water reduction agent and 150-195 parts of water. Compared with a conventional super-performance cement-based material, the material comprises the aeolian sand as a raw material, compared with super-performance cement-based materials with quartz sand and river sand as raw materials, the novel green super-performance cement-based material with the aeolian sand can meet identical indexes, in addition, compared with a conventional super-performance cement-based material, the material is relatively good in comprehensive property. Moreover, the invention provides a noel building material, the problems that conventional building materials are in shortage and increasingly serious desertization is caused can be solved, waste resources can be sufficiently utilized, wastes can be turned into wealth, development of the building industry can be promoted, and sustainable development strategies of current society can be met.

Description

technical field [0001] The invention belongs to the field of new green building materials, and in particular relates to a green ultra-high-performance cement-based material using aeolian sand and a preparation method thereof. Background technique [0002] With the rapid development of the national economy and the rapid advancement of industrialization, traditional cement-based materials are difficult to meet the needs of development. Therefore, through material design and structure optimization, improving and improving the performance of cement-based materials and prolonging the service life of cement-based materials and structures are important problems that need to be solved urgently. Traditional cement-based materials have experienced long-term development, and now ultra-high-performance cement-based materials, a new type of building material, are the latest development trend in the building materials industry. Ultra-high-performance cement-based materials usually refer t...

Claims

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Application Information

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IPC IPC(8): C04B28/04
CPCC04B28/04C04B2111/00017C04B2201/50C04B14/04C04B18/146C04B14/068C04B2103/0068C04B14/48C04B24/24
Inventor 蒋金洋王凤娟周文静武胜萍王立国冯滔滔许光远褚洪岩
Owner SOUTHEAST UNIV
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