CN104446215A - High-corrosion-resistance composite rib manufacturing material - Google Patents
High-corrosion-resistance composite rib manufacturing material Download PDFInfo
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- CN104446215A CN104446215A CN201410759789.9A CN201410759789A CN104446215A CN 104446215 A CN104446215 A CN 104446215A CN 201410759789 A CN201410759789 A CN 201410759789A CN 104446215 A CN104446215 A CN 104446215A
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Abstract
The invention provides a high-corrosion-resistance composite rib manufacturing material which comprises the following raw materials: high-performance active powder concrete, a CFRP rib, epoxy mortar, steel fibers and water, wherein the high-performance active powder concrete is mainly prepared from the following materials in parts by mass: 1 parts of cement, 1.1 parts of quartz sand, 0.3 parts of quartz powder, 0.25 parts of silica fume, 0.02 part of a water reducing agent, 0.35 part of steel fibers and 0.18 part of glue; micro-fine steel fibers are doped into the high-performance active powder concrete. The high-corrosion-resistance composite rib manufacturing material disclosed by the invention is relatively high in specific strength which is 10-15 times that of a common steel bar and is equal to the ratio of strength to performance density of a material, and has the advantages of fatigue resistance, corrosion resistance, electromagnetic insulativity, low heat conduction coefficient, good self-diagnosis property and the like.
Description
Technical field
The present invention relates to a kind of high corrosion resistance composite reinforcing and prepare material, belong to technical field of civil engineering.
Background technology
Through the development of nearly more than 150 years, Steel Concrete became a kind of material of construction be most widely used in engineering structure, but along with also exposing the relevant drawback such as defective of limitation and material self of its environment for use gradually.Fault in material is mainly reflected in the skeleton construction Problem of Failure based on steel bar corrosion, especially coastal and severe cold frost area is in, mainly corrode with the chlorination of reinforcing bar after salting deicing, in structure, the corrosion problem of reinforcing bar is more serious, it has had a strong impact on the weather resistance of skeleton construction, shorten the normal service life of buildings, and for repairing and safeguarding that the fund because the structure that steel bar corrosion goes wrong spends even can exceed the cost of structure itself.The limitation of environment for use mainly refers in some unique constructions, and as anti-electrostatic, anti-chemical corrosion structure, ordinary reinforced concrete structure just cannot be tackled.Therefore, after the root of the above problem of comprehensive analysis, be badly in need of adopting a kind of novel material to replace regular reinforcement.
Summary of the invention
The invention provides a kind of high corrosion resistance composite reinforcing and prepare material, the above defect can be overcome.
For solving above technical problem, the invention provides following technical scheme: a kind of high corrosion resistance composite reinforcing prepares material, and composite reinforcing is prepared starting material used and comprised: high-performance RPC, CFRP muscle, epoxy mortar, steel fiber and water; High-performance RPC forms primarily of following different materials: cement, quartz sand, silica powder, silicon ash, water reducer, carbon fiber and glue; As follows than proportioning according to quality: cement is 1, quartz sand is 1.1, and silicon ash is 0.25, and silica powder is 0.3, and water reducer is 0.02, and steel fiber is 0.35, and glue is 0.18; Micro steel fiber is mixed in described high-performance RPC.
Further, described epoxy mortar mainly by epoxy resin, solidifying agent and quartz sand three part stir form, the quality mixture ratio of its each component is: epoxy resin: solidifying agent: quartz sand=4:1:8.
This high corrosion resistance composite reinforcing that the present invention relates to prepares material, material self has higher specific tenacity, for 10 ~ 15 times of regular reinforcement, specific tenacity equals ratio, the antifatigue of the strength of materials and its apparent density, the advantage such as corrosion-resistant, solenoid isolation, heat-conduction coefficient are low, self diagnosis performance is good.Therefore relative to regular reinforcement, the weather resistance of component when FRP muscle uses in the structure, can be improved, the work-ing life of extending structure, and be applicable to being used in the structure of particular requirement, and be easy to monitoring structural health conditions and the diagnosis of carrying out the later stage.
Embodiment
A kind of high corrosion resistance composite reinforcing prepares material, and composite reinforcing is prepared starting material used and comprised: high-performance RPC, CFRP muscle, epoxy mortar, steel fiber and water; High-performance RPC forms primarily of following different materials: cement, quartz sand, silica powder, silicon ash, water reducer, carbon fiber and glue; As follows than proportioning according to quality: cement is 1, quartz sand is 1.1, and silicon ash is 0.25, and silica powder is 0.3, and water reducer is 0.02, and steel fiber is 0.35, and glue is 0.18; Micro steel fiber is mixed in described high-performance RPC.
Described epoxy mortar mainly by epoxy resin, solidifying agent and quartz sand three part stir form, the quality mixture ratio of its each component is: epoxy resin: solidifying agent: quartz sand=4:1:8.
The material of described new reinforcing bar comprises: high-performance RPC, CFRP muscle, epoxy mortar, steel fiber and water, CFRP is carbon-fibre composite (Carbon Fiber Reinforced Polymer, CFRP), belong to the one in fibre composite (Fiber Reinforced Polymer, FRP).
High-performance RPC is one of essentially consist material of composite reinforcing, belongs to a kind of ultra-high-strength cement-based composites.There is the premium propertiess such as high intensity, good toughness, lower porosity.Its basic configuration principle and conventional concrete different, it mainly passes through when not using any coarse aggregate to improve the fineness between each component of material internal and activity, control internal defects, the mainly appearance of hole and microfracture, make it to minimize, thus finally obtain intensity and the weather resistance of superelevation.
High-performance RPC mainly comprises following several: mineral admixture, the high efficiency water reducing agent such as fine sand, levigate quartz sand powder, silicon ash that Portland cement, grating are good.Sometimes can mix part micro steel fiber in above-mentioned basic compounding ingredient under specific environment, make it obtain higher toughness properties.
The mechanical performance index of table 1 high-performance RPC
。
The proportioning of table 2 high-performance RPC
。
For the packing material epoxy mortar in grout sleeve end anchor inside, in test mainly play binding agent, bond get up thus reach the state that the two collaborative work can be made mutually stressed by epoxy mortar by CFRP muscle and end ground tackle.Therefore, the stretch-draw effect of selection to follow-up CFRP muscle of the proportioning of epoxy mortar plays vital effect.And known by chemical composition analysis, in 3 groups of components of composition epoxy mortar, also unequal to the influence degree of cohesive force.Wherein, what mainly play a crucial role is epoxy resin and fixed line agent proportioning consumption therebetween, and quartz sand then just act as the role of filler, little to the contribution of cohesive force.Drawing the analysis of experiments of epoxy resin and solidifying agent further, the generation of epoxy resin to cohesive force plays a part core, but the epoxy resin of Individual existence does not possess too large cohesive force, and the embodiment of its bonding activity needs the participation of solidifying agent.When solidifying agent adds in the middle of epoxy resin, the chemical bond between epoxy molecule is opened, with being provided with higher viscosity himself exergonic while.When solidifying agent is very few, the activity of epoxy is not all opened, and cohesiveness is very low; When solidifying agent is too much, the chemical reaction of epoxy inner is too violent and can cause overall consolidation phenomenon.By analyze above and on the basis of the epoxy mortar proportioning that original OVM provides by test draw epoxy resin and solidifying agent coordinate ratio range between 3 ~ 5 time effect best.
Claims (2)
1. high corrosion resistance composite reinforcing prepares a material, it is characterized in that, composite reinforcing is prepared starting material used and comprised: high-performance RPC, CFRP muscle, epoxy mortar, steel fiber and water; High-performance RPC forms primarily of following different materials: cement, quartz sand, silica powder, silicon ash, water reducer, carbon fiber and glue; As follows than proportioning according to quality: cement is 1, quartz sand is 1.1, and silicon ash is 0.25, and silica powder is 0.3, and water reducer is 0.02, and steel fiber is 0.35, and glue is 0.18; Micro steel fiber is mixed in described high-performance RPC.
2. a kind of high corrosion resistance composite reinforcing according to claim 1 prepares material, it is characterized in that, described epoxy mortar mainly by epoxy resin, solidifying agent and quartz sand three part stir form, the quality mixture ratio of its each component is: epoxy resin: solidifying agent: quartz sand=4:1:8.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410759789.9A CN104446215B (en) | 2014-12-12 | 2014-12-12 | A kind of highly corrosion resistant composite reinforcing prepares material |
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| CN201410759789.9A CN104446215B (en) | 2014-12-12 | 2014-12-12 | A kind of highly corrosion resistant composite reinforcing prepares material |
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| CN104446215A true CN104446215A (en) | 2015-03-25 |
| CN104446215B CN104446215B (en) | 2017-06-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105236895A (en) * | 2015-10-27 | 2016-01-13 | 黑龙江科技大学 | High-performance gold tailing sand concrete |
Citations (5)
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|---|---|---|---|---|
| GB2210882A (en) * | 1986-10-30 | 1989-06-21 | Bio Kil Chemicals Ltd | Settable composition suitable for lining pipes and sewers |
| CN1872766A (en) * | 2006-06-16 | 2006-12-06 | 韩付勇 | Cement concrete of resin |
| CN101139192A (en) * | 2007-08-16 | 2008-03-12 | 同济大学 | Self-compacting fiber reinforcement active powder concrete and method for making same |
| CN102745944A (en) * | 2012-06-05 | 2012-10-24 | 河海大学 | Steel fiber reinforced glass fiber resin composite bar material and preparation method |
| CN103172322A (en) * | 2012-12-28 | 2013-06-26 | 北京新航建材集团有限公司 | Superactive slag powder doped active powder concrete and preparation method thereof |
-
2014
- 2014-12-12 CN CN201410759789.9A patent/CN104446215B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2210882A (en) * | 1986-10-30 | 1989-06-21 | Bio Kil Chemicals Ltd | Settable composition suitable for lining pipes and sewers |
| CN1872766A (en) * | 2006-06-16 | 2006-12-06 | 韩付勇 | Cement concrete of resin |
| CN101139192A (en) * | 2007-08-16 | 2008-03-12 | 同济大学 | Self-compacting fiber reinforcement active powder concrete and method for making same |
| CN102745944A (en) * | 2012-06-05 | 2012-10-24 | 河海大学 | Steel fiber reinforced glass fiber resin composite bar material and preparation method |
| CN103172322A (en) * | 2012-12-28 | 2013-06-26 | 北京新航建材集团有限公司 | Superactive slag powder doped active powder concrete and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105236895A (en) * | 2015-10-27 | 2016-01-13 | 黑龙江科技大学 | High-performance gold tailing sand concrete |
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