CN107117856B - Pure pulvis pervious concrete reinforcing agent and its application method with nano enhancement - Google Patents
Pure pulvis pervious concrete reinforcing agent and its application method with nano enhancement Download PDFInfo
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- CN107117856B CN107117856B CN201710445414.9A CN201710445414A CN107117856B CN 107117856 B CN107117856 B CN 107117856B CN 201710445414 A CN201710445414 A CN 201710445414A CN 107117856 B CN107117856 B CN 107117856B
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- pervious concrete
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- concrete reinforcing
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
Abstract
A kind of pure pulvis pervious concrete reinforcing agent and its application method with nano enhancement, reinforcing agent is made of following raw materials: 1~3 part of solid-state water-reducing agent, 1~3 part of rubber powder, 2~6 parts of silicon powder, 0.05~0.20 part of thickener, 0.01~0.08 part of aqueous tackifier powder, 0.1~1.0 part of nano silica, 3~8 parts of mixture.Application method is to be mixed together uniform use with cement component during concrete mixing, dosage is 1~2 parts by weight, in pervious concrete, pervious concrete reinforcing agent and the weight proportion of other raw materials are: 30~40 parts of cement, 150~160 parts of basaltic broken stone, 10~11 parts of water, 1~2 part of pervious concrete reinforcing agent.The pervious concrete made of the present invention has good adhesive property, increases effective intercommunicating pore of pervious concrete, increases coefficient of permeability, pervious concrete is prevented to settle, flexural strength, compression strength are improved, is constructed more convenient, product form material is easy to get, is at low cost.
Description
Technical field
The present invention relates to a kind of concrete admixture, specifically a kind of permeable coagulation of pure pulvis with nano enhancement
Native reinforcing agent belongs to the additive technology field in paving mix.The invention further relates to described with nano enhancement
The application method of pure pulvis pervious concrete reinforcing agent.
Background technique
In recent years, urban heat land effect is obvious, and extreme climate frequency is existing, and ecological protection is increasingly focused in urban construction, therefore
Pervious concrete is widely used in city non-motorized lane, square road, landscape road, and pervious concrete demand is not at this stage
It is disconnected to increase, but for technical aspect, there are still some problems: first is that pervious concrete is in the feelings for not using special additive
Heavy slurry is easy to produce under condition, the problems such as bonding force is not strong between stone particle, and surface stone anti-strip ability is poor.Second is that permeable coagulation
Soil can not improve pervious concrete intensity and adhesive property by sufficiently increasing cement consumption, and when increasing cement consumption, intensity is mentioned
High-amplitude is smaller, but the shortcomings that be substantially reduced there are coefficient of permeability.
Therefore the technical research of pervious concrete additive is particularly important, is thickened by microcosmic modification and macroscopic view
Mode, it is anti-that the compression strength of concrete, flexural strength and surface are improved in the case where guaranteeing permeation coefficient of permeable concrete
Stripping ability.
Inventor retrieves following Patents documents: CN101514086A discloses a kind of mortar or concrete anticracking increases
Strong agent, it is by accounting for 1%~5% high-strength high-modulus fibre, 30%~44% SILICA FUME, 40%~50% fine coal of total weight
Ash, 1%~5% pva powder, 1%~5% redispersable latex powder, 1%~5% hydroxypropyl methyl fiber
Element, 1%~5% water-reducing agent, 0.01%~1% air entraining agent and 1%~4% dispersing agent for fibre composition.CN101134649A
A kind of formula of seaport engineering concrete chloride ion penetration resistant reinforcing agent is disclosed, specific as follows: super-fine silicon micro-powder 15-20%,
Washing and calcined kaolin 20-25%, high-quality fly ash 20-25%, ground blast furnace slag 20-25%, superfine nano fiber
5-10%, high efficiency water reducing agent 6%, slump retaining agent 0.09%, air entraining agent 0.09%, organic active exciting agent 0.12%.
CN104402009A discloses a kind of hydrated calcium silicate gel solution early strength agent and preparation method thereof, comprising: calcareous material, siliceous
The weight ratio of material, gel dispersal agent and water, calcareous material and siliceous material be 0.3~3:1, the weight of water and calcareous material and
The total weight ratio of siliceous material is 5~30:1, and the mass fraction of gel dispersal agent is 0.1%~2.0%.
The above technology can be prevented for how to make pervious concrete made of reinforcing agent have good adhesive property
Pervious concrete sedimentation, improves flexural strength, compression strength, does not provide specific guidance program.
Summary of the invention
Technical problem to be solved by the present invention lies in provide a kind of permeable coagulation of pure pulvis with nano enhancement
Native reinforcing agent, the pervious concrete made of it have good adhesive property, can prevent pervious concrete from settling, improve anti-folding
Intensity, compression strength are constructed more convenient.
For this purpose, the present invention also provides making for the pure pulvis pervious concrete reinforcing agent with nano enhancement
Use method.
In order to solve the above technical problems, The technical solution adopted by the invention is as follows:
It is a kind of with nano enhancement pure pulvis pervious concrete reinforcing agent (or perhaps have nano enhancement
Pervious concrete reinforcing agent), its technical solution is that it be by the raw material of following components and weight proportion be uniformly mixed and make
At: 1~3 part of solid-state water-reducing agent, 1~3 part of rubber powder, 2~6 parts of silicon powder, 0.05~0.20 part of thickener, aqueous tackifier powder 0.01
~0.08 part, 0.1~1.0 part of nano silica, 3~8 parts of mixture.The thickener is hydroxyl propionyl Methyl cellulose
One or more of element, carboxymethyl cellulose, carboxymethyl hydroxyethyl cellulose, hydroxypropyl cellulose；The mixture is
One or more of flyash, silicon powder, levigate mountain flour.
In above-mentioned technical proposal, preferred embodiment be can be, and the solid-state water-reducing agent can be the poly- ammonia second of methyl-allyl
One or more of alkene ethers water-reducing agent, naphthalene sulphonate formaldehyde polyalcohol water reducing agent (combination).Above-mentioned solid-state water-reducing agent
One of for commodity available on the market, for example can be CR-P818 type, CR-P811 type and CR-P801 type solid-state water-reducing agent
Or several (combinations), all by Yueyang Oriental Yuhong Waterproof Technology Co., Ltd.'s production, (public was in 2017 4 for single formulation
It understand that its chemical component before the moon 1).
The application method of the pure pulvis pervious concrete reinforcing agent with nano enhancement, technical solution exist
It is to be mixed together uniform use with cement component during concrete mixing in it, used is pure with nano enhancement
The dosage of pulvis pervious concrete reinforcing agent is 1~2 parts by weight, with nano enhancement in the pervious concrete
The weight proportion of pure pulvis pervious concrete reinforcing agent and other raw materials is: 30~40 parts of cement, basaltic broken stone 150~160
Part, 10~11 parts of water, pure 1~2 part of pulvis pervious concrete reinforcing agent with nano enhancement.
In above-mentioned technical proposal, preferred embodiment be can be, and the cement is P0 42.5R cement.Above-mentioned basalt
The partial size of rubble can be 5~10mm, or be 2~5mm.
Apply the present invention to pervious concrete, cement in pervious concrete is changed by nano-material modified mode
The performance of slurry is improved the rheological property of cement slurry in pervious concrete by the synergistic effect between each component, substantially mentioned
The high flexural strength and compression strength of pervious concrete.Invention increases effective intercommunicating pores of pervious concrete, increase
Coefficient of permeability, it is therefore prevented that the heavy slurry of pervious concrete improves the peeling resistance of pervious concrete surface stone.The present invention is single
One status component, has many advantages, such as can to simplify that pervious concrete preparation process, product form material is easy to get, cost is relatively low.With
Existing reinforcing agent is compared, and manufacturing cost of the invention reduces 25% or more.The present invention is for common pervious concrete face
The reinforcing effect of the pervious concrete of two kinds of different ballast grain sizes of layer and bottom is compared (referring to specific embodiment portion
Point).
In conclusion the present invention is by reasonably matching, preferably wherein composition and dosage, the reinforcing agent used are made
Pervious concrete performance it is good, that is, have good adhesive property, it is therefore prevented that pervious concrete sedimentation, improve flexural strength,
Compression strength is constructed more convenient, is conducive to maintaining ecological balance and is realized sustainable development.And preparation process is simple, side
Just.
Specific embodiment
It elaborates below to the embodiment of the present invention, the present embodiment carries out under the premise of the technical scheme of the present invention
Implement, gives detailed implementation method and specific operating process, but protection scope of the present invention is not limited to following each realities
Apply example.
The partial size of the basaltic broken stone of following embodiment of the present invention is 5~10mm and partial size is 2~5mm.Cement is adopted
The high victory board PO42.5R ordinary portland cement produced with Sichuan Esheng Cement Group Co., Ltd..Water is tap water.
Embodiment 1: the pure pulvis pervious concrete reinforcing agent of the present invention with nano enhancement is by following
The raw material of component and weight proportion is uniformly mixed and manufactured: 2 parts of solid-state water-reducing agent, and 2 parts of rubber powder, 4 parts of silicon powder, thickener 0.10
Part, 0.04 part of aqueous tackifier powder, 0.5 part of nano silica, 5 parts of mixture.The thickener is that hydroxyl propionyl methyl is fine
Dimension element, two kinds of carboxymethyl cellulose of combination (weight proportion of the two is 1:1, in two kinds of raw materials the raw material of front with it is subsequent
The ratio between raw material weight, the same below).The mixture is flyash, (weight proportion of the two is for two kinds of levigate mountain flour of combination
1:0.5).Each component, which carries out being uniformly mixed after weighing accurately, is made pervious concrete reinforcing agent (product) of the invention.It is above-mentioned
Solid-state water-reducing agent be commodity available on the market, be
The combination of CR-P818 type solid-state water-reducing agent, CR-P811 type solid-state water-reducing agent, the weight proportion of the two are 1:2.Gu
State water-reducing agent can also be one in the poly- ammonia ethylene ethers water-reducing agent of methyl-allyl, naphthalene sulphonate formaldehyde polyalcohol water reducing agent
Kind is several (combination).Alternatively,
Pure pulvis pervious concrete reinforcing agent of the present invention with nano enhancement is by following components and again
The raw material for measuring proportion is uniformly mixed and manufactured: 3 parts of solid-state water-reducing agent, 3 parts of rubber powder, 5 parts of silicon powder, 0.20 part of thickener, aqueous
0.07 part of powder, 0.9 part of nano silica, 7 parts of mixture of thickening.The thickener is hydroxypropyl cellulose.Described is mixed
Closing material is silicon powder, two kinds of levigate mountain flour of combination (weight proportion of the two is 1:1.5).Each component is mixed after weighing accurately
Pervious concrete reinforcing agent (product) of the invention is uniformly made.Above-mentioned solid-state water-reducing agent is commodity available on the market,
It is CR-P801 type solid-state water-reducing agent.Solid-state water-reducing agent can also be the poly- ammonia ethylene ethers water-reducing agent of methyl-allyl, naphthalene sulfonic acids
One or more of salt yuban water-reducing agent (combination).
Embodiment 2: the user of the pure pulvis pervious concrete reinforcing agent of the present invention with nano enhancement
Method is to be mixed together uniform use with cement component during concrete mixing, and used is pure with nano enhancement
The dosage of pulvis pervious concrete reinforcing agent is 1.5 parts by weight, with nano enhancement in the pervious concrete
The weight proportion of pure pulvis pervious concrete reinforcing agent and other raw materials is: 38 parts of PO42.5R cement, basaltic broken stone 156
Part, 10 parts of water, pure 1.5 parts of pulvis pervious concrete reinforcing agent with nano enhancement.
Embodiment 3: the pure pulvis pervious concrete reinforcing agent of the present invention with nano enhancement is in coagulation
Uniform use is mixed together with cement component during native mixing.Pervious concrete raw material (parts by weight): PO42.5R cement 38
Part, 156 parts of basaltic broken stone (5~10mm of partial size), 10 parts of water, pervious concrete reinforcing agent 0 prepared by embodiment 1,0.5,
1.0, it is tested for 1.5,2.0 parts five groups, is denoted as A, B, C, D, E experimental group respectively.
The preparation of pervious concrete: it is in advance that load weighted cement and pervious concrete reinforcing agent mix is uniform, then will
Stone (basaltic broken stone) is added in blender after weighing and is uniformly mixed, and half (pervious concrete proportion) is added and uses water,
30s is mixed, adds PO42.5R cement and pervious concrete enhancing agent composition stirring 60s.After completing above-mentioned steps
Pour out mixture using vibration board (1500W) molding 150mm × 150mm × 150mm standard resistance to compression test block and 150mm ×
The anti-folding test block of 150mm × 550mm standard, after standard curing 7d and 28d, according to GB50081 " normal concrete mechanical property
Test method standard ".Test result is shown in Table 1.
Table 1,5~10mm Stone pervious concrete compression strength and flexural strength test result
Embodiment 4: the pure pulvis pervious concrete reinforcing agent of the present invention with nano enhancement is in coagulation
Uniform use is mixed together with cement component during native mixing.Pervious concrete raw material (parts by weight): PO42.5R cement 39
Part, 156 parts of basaltic broken stone (2~5mm of partial size), 11 parts of water, pervious concrete reinforcing agent 0 prepared by embodiment 1,0.5,1.0,
1.5, it is tested for 2.0 parts five groups, is denoted as F, G, H, I, J experimental group respectively.
The preparation of pervious concrete: it is in advance that load weighted cement and pervious concrete reinforcing agent mix is uniform, then will
Stone (basaltic broken stone) is added in blender after weighing and is uniformly mixed, and half (pervious concrete proportion) is added and uses water,
30s is mixed, adds PO42.5R cement and pervious concrete enhancing agent composition stirring 60s.After completing above-mentioned steps
Pour out mixture using vibration board (1500W) molding 150mm × 150mm × 150mm standard resistance to compression test block and 150mm ×
The anti-folding test block of 150mm × 550mm standard, after standard curing 7d and 28d, according to GB50081 " normal concrete mechanical property
Test method standard ".Test result is shown in Table 2.
Table 2,2~5mm Stone pervious concrete compression strength and flexural strength test result
It is compared and is shown by test result, for the pervious concrete of the rubble of common two kinds of particle diameter distributions at this stage,
Using after reinforcing agent being that the compression strength of experimental group pervious concrete is improved with flexural strength.It is continued to increase by force in volume
It is better that degree improves, and highest can make agent on crack resistance of concrete folding improve 100% or more with compression strength, for the permeable system of pervious concrete
Several influences are not obvious, but are above the experimental group for not mixing reinforcing agent, but experimental group is found from adaptation procedure, right
Easily come there is a phenomenon where heavy slurry blocking connectivity gap from construction angle in the experimental group for being not incorporated into reinforcing agent, forming process
It says, reinforcing agent of the invention improves significantly the effect of pervious concrete Construction State.
The reason of in view of construction cost, this product suggest that incorporation is experimental group C volume corresponding with I experimental group, this
Volume can sufficiently meet construction requirement, and cost is relatively low.
With the technical solution of a kind of mortar or concrete crack-resisting reinforcing agent disclosed in CN101514086A in background technique
It compares, component of the invention is different from, and constituent content is significantly different with it, and the solution is to agent on crack resistance of concrete by CN101514086A
Split problem, the i.e. problem of Cracking of building masonry wall, and it is solved by the invention be the adhesive property for how improving pervious concrete,
And the problem of improving its flexural strength and compression strength, it is demonstrated experimentally that the pervious concrete made of the present invention has well
Adhesive property, increase effective intercommunicating pore of pervious concrete, increase coefficient of permeability, it is therefore prevented that the heavy slurry of pervious concrete,
The peeling resistance for improving pervious concrete surface stone, improve flexural strength (flexural strength improves 20% or more),
Compression strength (compression strength improves 25% or more) is constructed more convenient.
Claims (5)
1. a kind of pure pulvis pervious concrete reinforcing agent with nano enhancement, it is characterised in that it be by following components and
The raw material of weight proportion is uniformly mixed and manufactured:
3 parts of solid-state water-reducing agent, 3 parts of rubber powder, 5 parts of silicon powder, 0.20 part of thickener, 0.07 part of aqueous tackifier powder, nano silica
0.9 part, 7 parts of mixture；The thickener is hydroxypropyl cellulose；The mixture is silicon powder, two kinds of levigate mountain flour
Combination, the weight proportion of the two are 1:1.5；Above-mentioned solid-state water-reducing agent is CR-P801 type solid-state water-reducing agent.
2. a kind of application method of the pure pulvis pervious concrete reinforcing agent described in claim 1 with nano enhancement,
It is characterized in that it is to be mixed together uniform use with cement component during concrete mixing, used has nanometer enhancing
The dosage of the pure pulvis pervious concrete reinforcing agent of effect is 1 ~ 2 parts by weight, in the pervious concrete there is nanometer to increase
The weight proportion of the pure pulvis pervious concrete reinforcing agent and other raw materials pretended is: 30 ~ 40 parts of cement, basaltic broken stone
150 ~ 160 parts, 10 ~ 11 parts of water, pure 1 ~ 2 part of pulvis pervious concrete reinforcing agent with nano enhancement.
3. the application method of the pure pulvis pervious concrete reinforcing agent according to claim 2 with nano enhancement,
It is characterized in that above-mentioned cement is P0 42.5R cement.
4. the application method of the pure pulvis pervious concrete reinforcing agent according to claim 2 with nano enhancement,
It is characterized in that the partial size of above-mentioned basaltic broken stone is 5 ~ 10mm.
5. the application method of the pure pulvis pervious concrete reinforcing agent according to claim 2 with nano enhancement,
It is characterized in that the partial size of above-mentioned basaltic broken stone is 2 ~ 5mm.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107935445B (en) * | 2017-11-17 | 2020-09-01 | 湖北大学 | Permeable concrete reinforcing agent and preparation method thereof |
| CN107973548A (en) * | 2018-01-19 | 2018-05-01 | 长春市城建维护股份有限公司 | A kind of high anti-freezing pervious concrete additive and preparation method thereof |
| CN108191341A (en) * | 2018-02-09 | 2018-06-22 | 珠海市昂科装饰工程有限公司岳阳分公司 | A kind of pervious concrete and preparation method thereof |
| CN109824296A (en) * | 2019-04-08 | 2019-05-31 | 湖南东方路固材料科技有限公司 | A kind of pervious concrete reinforcing agent and preparation method thereof |
| CN110615634A (en) * | 2019-08-01 | 2019-12-27 | 南京久禾润工程技术有限公司 | Pervious concrete reinforcing agent with compressive strength and preparation method thereof |
| CN111499255A (en) * | 2020-04-18 | 2020-08-07 | 河南砥柱工程检测有限公司 | Pervious concrete reinforcing stabilizer and preparation method thereof |
| CN112500087B (en) * | 2020-12-24 | 2021-10-22 | 江南大学 | High-strength high-toughness permeable cement concrete and preparation method thereof |
| CN113563006A (en) * | 2021-07-15 | 2021-10-29 | 禹智环保科技（深圳）有限公司 | Nano inorganic polymer permeable pavement performance reinforcing agent |
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| US5316572A (en) * | 1989-12-11 | 1994-05-31 | Nmb Ltd. | Method of manufacturing concrete for placement in air not requiring consolidation |
| CN101514086B (en) * | 2009-03-16 | 2011-11-16 | 宋英 | Mortar or concrete crack-resisting reinforcing agent |
| CN106380141B (en) * | 2016-08-29 | 2019-03-12 | 苏州市姑苏新型建材有限公司 | A kind of pervious concrete binder |
| CN106698996A (en) * | 2017-02-27 | 2017-05-24 | 江西省建筑材料工业科学研究设计院 | Water retention reinforcing agent of permeable concrete |
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