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Cement block of cement slope collapsing sand and preparation method thereof

A cement and block technology, applied in the field of building materials, to alleviate the shortage problem, realize the utilization of resources, and alleviate the damage of farmland

Active Publication Date: 2020-03-31
GUANGDONG INST OF ECO ENVIRONMENT & SOIL SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, no one has used Benggang sand as a coarse aggregate to prepare recycled concrete or other building materials.

Method used

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  • Cement block of cement slope collapsing sand and preparation method thereof
  • Cement block of cement slope collapsing sand and preparation method thereof
  • Cement block of cement slope collapsing sand and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] In order to meet the requirements of the M5 intensity level in this embodiment:

[0041] Benggang sand cement mortar is made of three components: water, cement and Benggang sand. The mass ratio of the components of Benggang sand cement mortar is water: cement: Benggang sand = 1:0.72:8.1.

[0042] Standard sand cement mortar is made of water, cement and standard sand. The mass ratio of standard sand cement mortar components is water: cement: standard sand = 1:0.72:8.1.

[0043] The preparation method of Bengang sand cement mortar is the same as that of standard sand cement mortar. Under the same conditions, after the mortar is evenly stirred, the consistency, air content, uniaxial compressive strength, and flexural strength are measured and compared with cement, and the consistency of the Bengang sand cement mortar is 84mm, which is 106mm less than the standard sand cement mortar; the air content is 1.5 % is slightly greater than 1.3% of river sand cement mortar; the aver...

Embodiment 2

[0048] In order to meet the requirements of the M10 intensity level in this embodiment:

[0049] Benggang sand cement mortar is made of three components: water, cement and Benggang sand. The mass ratio of the components of Benggang sand cement mortar is water: cement: Benggang sand = 1:0.9:8.1.

[0050] Standard sand cement mortar is made of three components: water, cement and standard sand. The mass ratio of standard sand cement mortar components is water: cement: standard sand = 1:0.9:8.1.

[0051] The preparation method of Bengang sand cement mortar is the same as that of standard sand cement mortar. Under the same conditions, after the mortar is evenly stirred, the consistency, air content, uniaxial compressive strength, and flexural strength are measured and compared with cement, and the consistency of the Bengang sand cement mortar is 84mm, which is 98mm less than the standard sand cement mortar; the air content is 1.8 % is slightly greater than 1.4% of river sand cemen...

Embodiment 3

[0056] This embodiment is to meet the requirements of the M15 intensity level:

[0057] Benggang sand cement mortar is made of three components: water, cement and Benggang sand. The mass ratio of the components of Benggang sand cement mortar is water: cement: Benggang sand = 1:1.1:8.1.

[0058] Standard sand cement mortar is made of three components: water, cement and standard sand. The mass ratio of standard sand cement mortar components is water: cement: standard sand = 1:1.1:8.1.

[0059] The preparation method of Bengang sand cement mortar is the same as that of standard sand cement mortar. Under the same conditions, after the mortar is evenly stirred, the consistency, air content, uniaxial compressive strength, and flexural strength are measured and compared with cement, and the consistency of the Bengang sand cement mortar is 72mm, which is 99mm less than the standard sand cement mortar; the air content is 1.7 % is slightly greater than 1.4% of river sand cement mortar;...

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Abstract

The invention discloses a cement block of cement slope collapsing sand and a preparation method thereof. The cement block includes water, slope collapsing sand and cement, wherein the mass ratio of the water, cement and slope collapsing sand is 1:0.5-2.0:6.9-8.2. By controlling different blending ratio, different engineering and construction requirement are satisfied. The slope collapsing sand iswaste granite sand, generated in a common water and soil loss, i.e. slope collapsing, in tropical and subtropical zones in the southern area of our country. During the preparation process, the slope collapsing sand needs pretreatment at first, the pretreated slope collapsing sand has angular appearance and can improve the strength of cement mortar as an aggregate. In the invention, the slope collapsing sand replacing common river sand is used to prepare the mortar blocks having great compression resistance, and can be applied to engineering as other building materials (e.g. concrete), so thatthe disposal problem of the slope collapsing sand is solved, and recycling treatment of the wastes is achieved.

Description

technical field [0001] The invention belongs to the technical field of building materials. More specifically, it relates to a cement block of cement collapsing sand and a preparation method thereof. Background technique [0002] Collapsing is a very harmful soil erosion phenomenon in the tropics and subtropics in my country. It mainly comes from the decomposition, collapse and erosion of deep granite weathering crust under the action of gravity and hydraulic force. The soil quality of these weathered granite colluvial bodies is crisp and loose, and the sand content is extremely high. Under the action of heavy rain and torrential rain, small-scale dilute sediment flow disasters often occur in gullies in the collapsed hillock area. The sediment washes away the slopes and directly silts the cultivated land, farmland, ditches and road facilities in the gully exit area, endangering farmland , orchards, water conservancy and transportation facilities, the local ecological enviro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B14/04
CPCC04B14/048C04B28/00C04B22/002C04B24/38C04B24/24
Inventor 郑明国张婉璐袁再建廖义善谢真越
Owner GUANGDONG INST OF ECO ENVIRONMENT & SOIL SCI
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