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Mixture of concrete roadbase

A technology for concrete roads and mixtures, applied in the field of resource utilization of solid waste, can solve the problems of low utilization rate of thiourea production waste residue, low compressive strength, etc., achieve resource treatment, low cost, improve compactness and resistance Osmotic effect

Pending Publication Date: 2021-01-05
山东京博环保材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the low utilization rate of thiourea production waste residue in the prior art and the low compressive strength of the road base mixture prepared from the residue, the invention provides a concrete road base mixture

Method used

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  • Mixture of concrete roadbase

Examples

Experimental program
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Effect test

Embodiment 1

[0025] This embodiment provides a method for preparing roadbed concrete base by using thiourea production waste slag, which includes 505 parts by weight of thiourea waste slag, 462 parts of thermoelectric furnace slag, 84 parts of mountain aluminum P.O32.5 cement, thermoelectric fly ash 254 parts, 112 parts of cyanamide slag, 421 parts of stones (12 stones).

[0026] (1) Take by weight 505 parts of thiourea waste residue, 462 parts of thermoelectric furnace slag, 254 parts of fly ash, 112 parts of cyanamide slag, 421 parts of 12 stones, and 84 parts of cement.

[0027] (2) Put the weighed thiourea waste slag, thermoelectric furnace slag, cyanamide slag, and stones into the mixer and mix for 8 minutes to obtain the waste slag mixture, take it out and put it into the mixer together with the weighed fly ash and cement 20min, get the road grass-roots mixture.

[0028] (3) Fill the stirred mixture into a mold and compact it to form a test piece with a diameter-to-height ratio of 1...

Embodiment 2

[0031] This embodiment provides a method for preparing roadbed concrete base by using thiourea production waste slag, including 506 parts by weight of thiourea waste slag, 458 parts of thermoelectric furnace slag, 78 parts of mountain aluminum P.O32.5 cement, thermoelectric fly ash 254 parts, 112 parts of cyanamide slag, 410 parts of concrete crushed material (≤37.5mm).

[0032] (1) Take by weight 506 parts of thiourea waste residue, 458 parts of thermoelectric slag, 254 parts of fly ash, 112 parts of cyanamide slag, 410 parts of concrete crushing material, and 78 parts of cement.

[0033] (2) Put the weighed thiourea waste slag, thermoelectric furnace slag, cyanamide slag, and concrete crushed material into the mixer and mix for 8 minutes to obtain the waste slag mixture. After taking it out, put it into the mixer together with the weighed fly ash and cement Mixed in medium for 20min to get the road grass-roots mixture.

[0034] (3) Fill the stirred mixture into a mold and c...

Embodiment 3

[0037] This embodiment provides a kind of method that utilizes thiourea production waste slag to prepare subgrade concrete base, comprises 500 parts of thiourea waste slag by weight, 455 parts of thermoelectric furnace slag, 80 parts of mountain aluminum P.O32.5 cement, 254 parts of thermoelectric fly ash parts, 112 parts of cyanamide slag, and 410 parts of building brick broken material (≤37.5mm).

[0038] (1) Take by weight 500 parts of thiourea waste residue, 455 parts of thermoelectric furnace slag, 254 parts of fly ash, 112 parts of cyanamide slag, 410 parts of broken building bricks, and 80 parts of cement.

[0039] (2) Put the weighed thiourea waste slag, thermoelectric furnace slag, cyanamide slag, and building brick broken material into the mixer and mix for 8 minutes to obtain the waste slag mixture. After taking it out, put it together with the weighed fly ash and cement. Mix in the mixer for 20 minutes to obtain the road grass-roots mixture.

[0040](3) Fill the s...

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Abstract

The invention belongs to the technical field of solid waste resource utilization, and particularly relates to a mixture of a concrete roadbase. The mixture is prepared from the following components inparts by weight: 496-513 parts of thiourea waste residues, 350-469 parts of thermoelectric furnace slag, 75-84 parts of cement, 246-265 parts of fly ash, 96-113 parts of cyanamide residues and 398-423 parts of stones or building crushed materials. By the adoption of the method, thiourea can be comprehensively utilized for producing waste residues, meanwhile, soil filling smashing and compacting are facilitated, the strength of the roadbase can be improved, influences of compression deformation and shrinkage deformation are reduced, the water stability and durability of the roadbase are improved, the resource utilization level is improved, and the production cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of resource utilization of solid waste, and in particular relates to a mixture of concrete road bases. Background technique [0002] As a chemical raw material, thiourea is widely used in the manufacture of medicines, dyes, resins, molding powders, etc. It is also used as a vulcanization accelerator for rubber and a flotation agent for metal minerals. Calcium hydrosulfide is formed by the action of hydrogen sulfide and lime slurry, and then reacted with cyanamide (based) calcium chloride. It can also be prepared by melting ammonium thiocyanate, or by reacting cyanamide with hydrogen sulfide. The process principle is as follows: [0003] CaCN 2 +H 2 S+2H 2 O=CS(NH 2 ) 2 +Ca(OH) 2 [0004] This production process can produce a large amount of waste residues when obtaining thiourea products, and the main components of thiourea production waste residues are calcium hydroxide (50%-80%, mass content, the s...

Claims

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Application Information

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IPC IPC(8): C04B28/04
CPCC04B28/04C04B2111/00017C04B2111/0075C04B2201/50C04B18/0418C04B18/10C04B14/02C04B18/08C04B18/16
Inventor 张余鑫穆广杰崔东波孙晓光张学雷李佳明闫敏敏
Owner 山东京博环保材料有限公司
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