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Sandy-spoil-based C30 slope-protection brick mixture ratio and preparation method of slope-protection brick

A technology for sandy spoil and slope protection bricks, which is applied in the fields of waste utilization and new materials, can solve the problems of huge transportation costs and affect the environment, and achieves the effects of broad application prospects, reduced transportation, and simple preparation process.

Inactive Publication Date: 2015-01-28
HOHAI UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The transfer and storage of a large amount of spoil in waterway improvement not only costs a lot, but also affects the environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0016] 1) Take 12 parts of cement, 65 parts of sandy spoil, 8.5 parts of mineral powder, 1.8 parts of gypsum, and 0.8 parts of reinforcing agent according to mass percentage, mix well, then add 11 parts of water, and mix well in a cement mortar mixer;

[0017] 2) Weigh 2240 grams of material for each sample, put it into a forming mold with a size of 100×100×100mm, use a microcomputer-controlled electro-hydraulic servo universal testing machine, load and form in two stages, and pressurize the first stage after filling the material To 10Mpa constant pressure for 2 minutes, the second stage is pressurized to 20Mpa constant pressure for 2 minutes to form, the compacted density of the test piece is 2.231 g / cm3;

[0018] 3) The molded specimens were removed from the mold immediately, placed indoors and sprinkled with water every day for natural maintenance, and the solidified product product 1 based on sandy spoil was obtained;

[0019] According to the "Construction Quality Accep...

example 2

[0021] 1) Take 9 parts of cement, 70 parts of sandy spoil, 7 parts of mineral powder, 3.5 parts of gypsum, and 1.8 parts of reinforcing agent according to the mass percentage, mix well, then add 10 parts of water, and mix well in a cement mortar mixer;

[0022] 2) Weigh 2235 grams of material for each sample, put the material into a forming mold with a size of 100×100×100mm, use a microcomputer-controlled electro-hydraulic servo universal testing machine, load and form in two stages, and the first stage after filling the material Pressurize to 10Mpa constant pressure for 2 minutes, pressurize the second stage to 20Mpa constant pressure for 2 minutes to form, and the compacted density of the test piece is 2.224 g / cm3;

[0023] 3) The molded specimens were demoulded immediately, placed in the room and sprinkled with water every day for natural maintenance, and the solidified product 2 based on sandy spoil was obtained;

[0024] According to the "Construction Quality Acceptance ...

example 3

[0026] 1) Take 18 parts of cement, 55 parts of sandy spoil, 12.5 parts of mineral powder, 0.8 parts of gypsum, 2 parts of reinforcing agent according to the mass percentage, mix well, then add 12 parts of water, and mix well in the cement mortar mixer:

[0027] 2) Weigh 2285 grams of material, put it into a forming mold with a size of 100×100×100mm, use a microcomputer-controlled electro-hydraulic servo universal testing machine, load and form in two stages, and pressurize the first stage to a constant pressure of 10Mpa after filling the material After 2 minutes, the second secondary is filled with the remaining materials and pressurized to a constant pressure of 20Mpa for 2 minutes to form. The compacted density of the test piece is 2.267 g / cm3.

[0028] 3) The molded specimens were demolded immediately, placed indoors and sprinkled with water every day for natural maintenance, and the solidified product 3 based on sandy spoil was obtained.

[0029] According to the "Constru...

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Abstract

The invention discloses a C30 slope-protection brick mixture ratio based on sandy spoil in navigation projects and a preparation method of the slope-protection brick. The C30 slope-protection brick comprises the following raw materials in parts by mass: 9-18 parts of cement, 55-70 parts of sandy spoil, 7-13 parts of mineral powder, 0.8-3.5 parts of plaster, 0.4-2 parts of an enhancer and 9-12 parts of water. The preparation method comprises the following steps: after the raw materials are fully and evenly mixed according to the ratio, injecting the mixture into a prefabricated mold, molding under the working pressure of 20MPa, enabling a molded test specimen to be demolded immediately, and placing the demolded test specimen indoors for natural watering maintenance to obtain the sandy-spoil-based slope-protection brick. The cube test specimen strength of the sandy-spoil-based slope-protection brick can reach C30, and the cube test specimen can replace a concrete material to be used for preparing the slope-protection brick and other hydraulic engineering materials. The sandy spoil is reasonably utilized, so that the transferring and ground pressing of spoil and the adverse effects on the environment in channel improvement are reduced, and the field of resource utilization of sandy spoil curing products is expanded.

Description

technical field [0001] The invention relates to concrete configuration technology, in particular to a sandy spoil-based concrete mix ratio and its products, which belong to the technical field of waste utilization and new materials. Background technique [0002] With the advancement of the Yangtze River channel regulation, in order to ensure the stability of the bank slope of the channel, it is necessary to cut the bank slope; a large amount of dredging spoil will also be produced during the dredging process of the channel. The transfer and storage of a large amount of spoil in waterway regulation not only costs a lot, but also affects the environment. If the waterway project spoil resources are prepared into hydraulic materials and building materials through solidification technology, and they are used in waterway improvement projects and urban construction nearby, it will reduce land occupation while avoiding spoil transfer, reduce project cost, and solve the problem of so...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/14C04B18/04
CPCY02W30/91
Inventor 陶桂兰江朝华束梁冯兴国朱志杰范俊燕朱召泉朱瑞虎庄宁祁华希马杰秦力龚伟杰周清泉董光辉宋云涛谭彬政阮健姚子顺姚祎雯
Owner HOHAI UNIV
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