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Crack-free continuous reinforced concrete and manufacturing method thereof

A reinforced concrete and crack-free technology, which is applied in the field of road construction materials, can solve the problems affecting the service performance and life of the road surface, and achieve the effect of improving the bonding ability, high tensile strength and increasing strength

Active Publication Date: 2021-09-21
SOUTHEAST UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, under the combined action of temperature and humidity, dry shrinkage cracks and temperature shrinkage cracks are still unavoidable in the continuously reinforced concrete pavement, and it is easy to extend to the asphalt surface layer to form reflective cracks, which affect the performance and performance of the pavement. life

Method used

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  • Crack-free continuous reinforced concrete and manufacturing method thereof
  • Crack-free continuous reinforced concrete and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] A crackless continuous reinforced concrete, the non-crack-free reinforced concrete 1 includes components of the following mass parts: steel slag - flour coated silicate cement, 35 steel slag fine materials, montmorillonite nano 1 powder, 0.1 parts of polypropylene fiber, 5.9 water, 48 steel slag coarse materials, but also a high-strength steel network 2 that is embedded in concrete.

[0051]Steel slag - fly ash composite silicate cement includes a generic silicate cement, steel slag powder, and fly ash of cement as intensity level 42.5; steel slag powder replaces 20% of ordinary silicate cement, steel slag powder free calcium oxide content 2%. Falling coals replaced 10% of ordinary silicate cement.

[0052] The steel slag coarse aggregate is provided with three types of particle sizes, which are 2.36 mm to 4.75 mm, 4.75 mm to 9.5 mm and 9.5 mm to 16 mm, respectively.

[0053] The steel slag else ranges from 0 to 2.36 mm, free calcium oxide content of 1%, and 1% of the immer...

Embodiment 2

[0077] Crack-free continuous reinforced concrete, said non-crack-free reinforced concrete 1 including components of the following mass parts: steel slag - flour coated silicate cement, 46 steel slag coarsas, steel slag fine assembly 36, 1 monoitenite, 0.2 parts of polypropylene fiber and 5.8 parts of water; also included high-strength steel bars embedded in concrete.

[0078] Steel slag - fly ash compound silicate cement includes a generic silicate cement, steel slag powder, and fly ash of cement-intensity grade 42.5; steel slag powder replaces 20% of ordinary silicate cement, steel slag powder free calcium oxide The content is 2%. Falling coal is replaced by 15% of ordinary silicate cement.

[0079] The steel slag coarse aggregate is provided with three types of particle sizes, which are 2.36 mm to 4.75 mm, 4.75 mm to 9.5 mm and 9.5 mm to 16 mm, respectively.

[0080] The steel slag fine assembly particle size ranges from 0 to 2.36 mm, free calcium oxide content of 2%, and the im...

Embodiment 3

[0104] A crackless continuous reinforcing concrete, the non-crack-free reinforced concrete 1 includes components of the following mass: steel slag powder composite silicate cement, 48 steel slag coarsas, 32 steel slag fine materials, Montmorillonite rice noodle, 0.2 parts of polypropylene fiber and 5.8 parts of water; also included high-strength steel bars embedded in concrete.

[0105] Steel slag powder composite silicate cement includes a generic silicate cement and steel slag powder with cement intensity level 42.5; wherein steel slag powder replaces 25% of ordinary silicate cement, and the codoxide content of steel slag powder is 2%.

[0106] The steel slag coarse aggregate is provided with three types of particle sizes, which are 2.36 mm to 4.75 mm, 4.75 mm to 9.5 mm and 9.5 mm to 16 mm, respectively.

[0107] The steel slag fine assembly particle size ranges from 0 to 2.36 mm, free calcium oxide content of 2%, and the immersion expansion is 2%.

[0108] Simmettimeri rice noo...

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Abstract

The invention discloses crack-free continuous reinforced concrete and a manufacturing method thereof. The concrete comprises the following components: cement, steel slag coarse aggregate, steel slag fine aggregate, montmorillonite nano powder, polypropylene fiber, water and a reinforcing mesh pre-arranged in the concrete. The preparation method comprises the following steps: step 1, firstly carrying out dry mixing on the montmorillonite nano powder, the polypropylene fiber, the steel slag coarse aggregate and the steel slag fine aggregate, then adding the cement, carrying out dry mixing, adding water, and stirring; step 2, performing material distribution; step 3, paving: paving by adopting manual paving or a slip form paver; step 4, performing film covering maintenance and hair sweeping treatment; and step 5, sprinkling water for washing, and laminating for curing. The problem of cracking of the continuous reinforced concrete pavement can be effectively solved, and the strength and the crack resistance of the continuous reinforced concrete slab are improved, so that the purposes of improving the use performance of the pavement and prolonging the service life of the pavement are achieved.

Description

Technical field [0001] The present invention relates to the technical field of road building materials, particularly a crack-free continuous reinforced concrete and its production methods. Background technique [0002] Continuous reinforcing concrete pavements refers to a continuous steel bar in a longitudinal direction, in addition to providing expansion seams and construction sutures at the intersection of other pavements, and construction sewing, without the landscape of cement concrete pavements. This pavement restricts the cracking of the panel due to longitudinal contraction, overcoming the defects such as various road diseases (such as slime, wrong station) caused by seaming cement concrete pavements, and improved The performance of the road is used. [0003] In the prior art, under the common action of temperature and humidity, the continuous reinforced concrete pavement still cannot avoid the production of dry shrinkage and temperature shrinkage, and it is easy to extend...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04
CPCC04B28/04C04B18/142C04B14/104C04B16/0633
Inventor 陈小兵罗干生许晓宇王家丰赵静张小瑞宁云峰
Owner SOUTHEAST UNIV