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Plant fiber cement-based block material and preparation method thereof

A plant fiber and cement-based technology, which is applied in the field of filling blocks, can solve the problems of poor quality, lack of toughness and ductility, and single block materials, and achieve low material prices, good ductility and energy consumption performance, and convenient material acquisition Effect

Inactive Publication Date: 2010-11-17
BEIJING JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In order to solve the above-mentioned problems, the present invention proposes a plant fiber cement-based block material and its preparation method, which effectively solves the lack of toughness and ductility of the block materials filled with dense rib composite wall structures, the composition of the blocks is single, and the quality is not good. Good to get under control

Method used

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  • Plant fiber cement-based block material and preparation method thereof
  • Plant fiber cement-based block material and preparation method thereof
  • Plant fiber cement-based block material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A raw material mix ratio for the production of plant fiber cement-based blocks:

[0025] Table 1 Mixing ratio of rice straw fiber cement-based block materials (kg)

[0026]

[0027] Step 1, weighing the material according to the composition and content of the rice straw fiber cement-based block material described in Table 1; the rice straw fiber is in the form of filaments with a length of 2-8 mm.

[0028] Step 2: adding the rice straw fiber and urea-formaldehyde resin rubber powder weighed in Step 1 into a mixer, and stirring for 1 minute.

[0029] Step 3: Add the cement, medium sand, and fly ash weighed in Step 1 to the mixture in Step 2, continue stirring for 2 minutes, and then add 2 / 3 of the total water consumption for stirring.

[0030] Step 4: Finally, add the high-efficiency water reducer, early strength agent and 1 / 3 of the total water consumption in step 1 and stir. After stirring for 3 minutes, discharge the material, pour it into the mold, and cure it fo...

Embodiment 2

[0033] A raw material mix ratio for the production of plant fiber cement-based blocks:

[0034] Table 2 Mixing ratio of rice straw fiber cement-based block materials (kg)

[0035]

[0036] Step 1, weighing the material according to the composition and content of the rice straw fiber cement-based block material described in Table 2;

[0037] Other processes are the same as Example 1, and the test results are: compressive strength: 3.3Mpa.

Embodiment 3

[0039] A raw material mix ratio for the production of plant fiber cement-based blocks:

[0040] Table 3 Mixing ratio of rice straw fiber cement-based materials (kg)

[0041]

[0042] Step 1, weighing the material according to the composition and content of the rice straw fiber cement-based block material described in Table 3;

[0043] Other processes are the same as Example 1, and the test results are: compressive strength: 5.0Mpa.

[0044] figure 1 It is a schematic diagram of the structure of the ribbed composite wall. The rib structure system is composed of outer frame column 1, outer frame beam 2, floor slab 3, concrete grid 4, and connecting column 5. The block of the present invention is filled in the concrete sash 4 .

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Abstract

The invention discloses a plant fiber cement-based block material and a preparation method thereof, which relate to a building block material. The building block material comprises the following components in percentage by weight: 55.7 to 63 percent of cement, 15 to 22.1 percent of medium sand, 10 to 20 percent of fly ash, 4 to 8 percent of plant fibers, 0.6 to 0.8 percent of urea formaldehyde resin adhesive powder, 0.2 to 0.5 percent of early strength agent and the balance of high-efficiency water reducer and water. The preparation method comprises: weighing the components of the block material by weight percentage; adding the weighed rice straw fibers, which are like thin threads, together with the weighed urea formaldehyde resin adhesive powder into a mixer for mixing; adding the weighed cement, medium sand and fly ash into the mixture, continuously mixing the mixture, adding 2 / 3 of total water and mixing; adding the high-efficiency water reducer, the early strength agent and 1 / 3 of total water, discharging the materials, filling the materials into a mold for casting, and curing; and obtaining filling blocks for use in a densely-ribbed composite wall structure.

Description

technical field [0001] The invention relates to a building block material, in particular to a filling block for a densely ribbed composite wall. Background technique [0002] The patent application text of Chinese Invention Patent Publication No. 200610001006.6 discloses a new type of structure named "Micro-rib structure system and its connection construction method". The densely ribbed structural system of the invention includes densely ribbed composite wallboards, invisible frames (outer frame beams, outer frame columns and connecting columns) and floor slabs, wherein the densely ribbed composite wallboards are composed of filling blocks and concrete sash. [0003] The densely ribbed composite wall structure is that the densely ribbed composite wallboard mainly relies on the plastic deformation of the structural material to dissipate energy, and the result will be serious structural damage. In the traditional densely ribbed composite wall panels, the filling blocks only u...

Claims

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Application Information

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IPC IPC(8): C04B28/00E04C1/00
CPCC04B28/02Y02W30/91C04B14/06C04B18/08C04B18/248C04B24/307C04B40/0028C04B2103/12C04B2103/302
Inventor 姚谦峰刘丹安明喆郭猛
Owner BEIJING JIAOTONG UNIV
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