CN109437775A - A kind of building basement drainage concrete and preparation method thereof - Google Patents
A kind of building basement drainage concrete and preparation method thereof Download PDFInfo
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- CN109437775A CN109437775A CN201910025242.9A CN201910025242A CN109437775A CN 109437775 A CN109437775 A CN 109437775A CN 201910025242 A CN201910025242 A CN 201910025242A CN 109437775 A CN109437775 A CN 109437775A
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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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
- C04B2111/00284—Materials permeable to liquids
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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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
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- Materials Engineering (AREA)
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Abstract
The invention discloses a kind of building basement drainage concrete and preparation method thereof, building basement is made of with drainage concrete the raw material of following mass percent: coarse aggregate 70%~80%, cement 13%~20%, enhancing material 0.5%~1.0%, high-strength inorganic fiber 0.13%~0.4%, rubber powder 0.4%-1.2%, water 4%~6%；The partial size of the coarse aggregate is 5~20mm；Enhancing material is active nano silica-aluminum materials and organic functional molecular compound additive.There is synergistic effect, drainage concrete strength and cracking resistance can be promoted, while improving drainage concrete permeable, impact resistance and anti-clogging performance as modifying agent using enhancing material, inorfil, rubber powder in drainage concrete of the invention.Drainage concrete of the invention can be applied to the middle layer of building basement bottom plate terrace system, while playing load-bearing, realizes drainage water conservancy diversion, dredges the function of steam；Basement surface layer ponding and humidity are avoided, can prevent basement resin terrace from damaging because of infiltration or steam.
Description
Technical field
The present invention relates to features concrete fields, and specifically, the present invention provides a kind of building basement drainages
Concrete and preparation method thereof.
Background technique
There is the basement parking garage much built to occur bottom slab crack in use for some time at present, underground water leaks ponding
Compare serious problem；Main break is on bottom plate.Normally descend room floor bottom plate from bottom to up be respectively flexible waterproof layer,
Concrete structure self-waterproofing layer, terrace surface layer.Flexible waterproof layer there are cracky, it is easy to aging, durability is poor the problems such as, and once
There is breakage at one entire area can be made to lose waterproof ability.Concrete itself is used as a kind of heterogeneous construction material, and inside is contained
A large amount of holes and micron order crack, while as a kind of fragile material, temperature stress, shrinkage stress, differential settlement etc. are a variety of
Factor easily causes the cracking of concrete.When basement hydraulic pressure is excessive, on the one hand, underground water and moisture can pass through flexible water
Come on the breakage of layer and the hole and crack-leakage to ground of concrete, causes basement humidity, excess surface water；Another party
Face, normal concrete bottom plate easily causes sulfate, Chloride Attack and cold Frozen-thawed cycled to destroy after penetrating into moisture, to accelerate
Bottom plate deterioration cracking causes the adverse consequences such as terrace damage.This not only affects basement use, also significantly increases the later period
Safeguard the expense of repairing.
Therefore, the drainage guide performance for promoting concrete of basement floor structure internal system has important real value.
In concrete floor be arranged drainage layer can by underground water and moisture after filtered water level filters from consider water layer two sides draining
Channel exports to municipal Storm Sewer Network, and can be used as middle water recycling and reusing by the water of filtering water conservancy diversion, meets water resource
Ecological, environmental protective demand.
Chinese patent CN205775705U discloses a kind of basement in high rise building concrete self-waterproof constructing structure, under
Basal layer, blotter, plain color pervious concrete layer and colorful water-permeable concrete layer, the basal layer, rubble are followed successively by and
Be formed by fixedly connecting between bed course, plain color pervious concrete layer and colorful water-permeable concrete layer, the blotter with a thickness of
15~30cm, the plain color pervious concrete layer with a thickness of 8~12cm, the colorful water-permeable concrete layer with a thickness of 3~
7cm.The patent is by being arranged plain color pervious concrete layer and colorful water-permeable concrete layer, blotter in blotter upper end
The rubble of specific particle diameter is selected, water penetration can be effectively improved.
However most of existing pervious concrete has that permeability rate is lower, and rain drop erosion performance is also poor,
And the hole of concrete is also easy to be blocked by silt, causes its service life shorter.
Chinese patent CN106495611A discloses a kind of rubber powder pervious concrete and preparation method thereof.The rubber powder is permeable mixed
Solidifying soil includes following component in parts by mass: 300~450 parts of cement, 1300~1800 parts of coarse aggregate, 2~15 parts of additive,
20~50 parts of mineral admixture, 6~50 parts of rubber powder of waste tire, 6~12 parts of cementing agent, 0.2~1.0 part of moisturizer, water 100
~150 parts.The rubber powder pervious concrete shock resistance is higher, but permeability rate is still relatively low, and the hole of concrete is easy
It is blocked, further reduced its water penetration and service life.
Chinese patent CN108033808A discloses a kind of method for improving porous concrete product hole anti-clogging ability；
By the way that molding porous concrete product to be immersed in the surfactant solution, make surfactant in pervious concrete
Product pore surface adheres to form new surface texture, to improve the adhesive ability for reducing fine particle in hole, thus
It effectively prevent tiny particle to block pervious concrete；The invention can energy of attachment of the tiny particles content in hole by reducing
Power can reduce the case where pervious concrete blocks to a certain extent, extend the service life of porous concrete product, but right
Probably due to impurity particle not soluble in water is greater than thoroughly after in the hole that the graininess physics such as silt enters pervious concrete
Water coagulation soil inside pore diameter and by pore plugging, substantially reduce the water penetration and service life of pervious concrete.
Summary of the invention
For the deficiency of the above technology, present invention seek to address that prior art problem, provides a kind of building basement filter
Water coagulation soil, not only can be improved the permeability rate of pervious concrete, can also improve its impact resistance, and make it have preferably
Anti-blockage function, and then prolong its service life.
Building basement of the invention drainage concrete, is made of the raw material of following mass percent: coarse aggregate 70%
~80%, cement 13%~20%, enhancing material 0.5%~1.0%, high-strength inorganic fiber 0.13%~0.4%, rubber powder
0.4%-1.2%, water 4%~6%；The partial size of the coarse aggregate is 5~20mm；Enhancing material be active nano silica-aluminum materials with
Organic functional molecular compound additive.
Various raw materials of the invention cooperate have preferable water penetration, impact resistance and it is not easy to crack, be not easy to block up
Plug, durability are good, can be used as the drainage guide layer in basement floor constructions system, solve existing normal concrete bottom plate knot
Construction system is without drainage diversion function, the problem of leakage ponding easy to crack.Before ensuring that basement ground loading ability does not reduce
It puts, even if in the case where flexible waterproof layer is damaged and concrete floor has microcrack, it also can be in time by the underground water of reverse osmosis
With moisture by filtering export, ensure that ground is not got damp, impermeable ponding, garage terrace not because bottom plate moisture or due to percolating water by
It destroys.
Preferably, the active nano silica-aluminum materials are made of silicon ash, fume colloidal silica and ultra-fine metakaolin；Institute
Organic functional molecular is stated to be made of polycarboxylate water-reducer, diisobutyl sodium naphthalene sulfonate, one or four butynediols and former times purine natural gum；Institute
State the mass percent of each component in enhancing material are as follows: silicon ash 40~55%, fume colloidal silica 5~10%, ultra-fine metakaolin
30~40%；Polycarboxylate water-reducer 8~10%, 0.1~0.2%, 1 butynediols 1~2% of diisobutyl sodium naphthalene sulfonate, former times
Purine natural gum 0.15~0.3%.On the one hand, active nano silica-aluminum materials sheet in the enhancing material of this programme preferred ingredient and formula
Body has the function of increasing drainage concrete strength, and organic functional molecular can play more preferable dispersion high-strength inorganic fiber and rubber
The effect of rubber powder further increases the intensity and resistance to punching mill property of concrete；On the other hand, each raw material mutual cooperation tool in reinforcing agent
It prevents concrete from the phenomenon that sedimentation plug-hole occur, improves the permeability rate of concrete, and can also prevent impurity from entering and adhere to
In concrete pore, the anti-blocking performance of concrete is improved.
Preferably, the coarse aggregate be lime stone rubble, Black Warrior stone rubble, diabase gravel, in granite stones extremely
Few one kind, partial size are 5~10mm or 10~20mm.The coarse aggregate of this programme plays drainage concrete porous structure skeleton function,
Guarantee to make it have biggish porosity and water penetration while drainage concrete strength.
Preferably, the cement is the ordinary portland cement of 42.5 ratings above.The preferred cement of this programme is drainage
The main bonding cementing material of concrete coarse aggregate cooperates the intensity for guaranteeing concrete with coarse aggregate.
Preferably, the rubber powder is 80~100 mesh rubber powder of waste tire.Add the waste rubber powder of particular particle size not
The recycling for only realizing waste resource, can also improve the impact resistance of concrete.
Preferably, the high-strength inorganic fiber is basalt chopped fiber or alkali-proof glass chopped strand, and high-strength inorganic
Fiber is suitable with modulus of elasticity of concrete.On the one hand the high-strength inorganic fiber for adding this programme can preferably divide in concrete
It dissipates, improves the intensity of drainage concrete, collaboration resistance is generated when tension, the cracking resistance of drainage concrete can be improved；
Another aspect high-strength inorganic fiber can prevent concrete mix slurry from isolating sinking plug-hole with enhancing material cooperation, make in concrete
Portion and external pores more evenly, and then improve the water penetration of concrete, and high-strength inorganic fiber can also play blocking outside
The impurity such as silt enter the effect of drainage inside concrete, play a role in filtering and internal void is prevented to be blocked, extend drainage
The service life of concrete.
It is highly preferred that building basement of the invention is made of with drainage concrete the raw material of following mass percent: by
The raw material composition of following mass percent: coarse aggregate 76.5%, cement 16.5%, enhancing material 0.70%, high-strength inorganic fiber
0.30%, rubber powder 0.7%, water 5.3%；The coarse aggregate is that 10~20mm single-stage matches basaltic broken stone；High-strength inorganic fiber
For basalt chopped fiber, fibre length 10mm；Enhancing material is made of the raw material of following mass percent: silicon ash 47.1%,
Fume colloidal silica 7%, ultra-fine metakaolin 35%；Polycarboxylate water-reducer 9%, diisobutyl sodium naphthalene sulfonate 0.2%, one or four fourths
Acetylenic glycols 1.5%, former times purine natural gum 0.2%.Drainage concrete made from the material matching of each ratio is comprehensive in this programme
Can be more excellent, further increase the anti-blocking property and durability of drainage concrete.
The preparation method of drainage concrete of the invention, includes the following steps:
1) blender is added in coarse aggregate, 30~40s of blender mix is added in 50% water consumption.
2) cement, enhancing material, high-strength inorganic fiber, 30~40s of rubber powder mix are added.
3) it is eventually adding 50~60s of surplus water mix.
This method promotes cement base gelling slurry in the compactness in aggregate interface area, so as to enhance between slurry and aggregate
Interface binding intensity can play the intensity and durability of drainage concrete to greatest extent.Inorfil is avoided to be done simultaneously
It mixes, reduces fibrous fracture degree.
Compared with prior art, building basement drainage concrete of the invention has the beneficial effect that
(1) enhancing material of the invention, inorfil, rubber powder have synergistic effect as modifying agent, and it is mixed can to promote drainage
Solidifying soil intensity and cracking resistance, while improving drainage concrete permeable, impact resistance and anti-clogging performance.
(2) drainage concrete structure of the invention is stablized, and has extremely strong environmental carrying capacity and endurance, durability
Lead to the service life with building structure, is not necessarily to later maintenance.
(3) primary raw material of drainage concrete of the invention is widely distributed, and materials are convenient, may be implemented to give up using rubber powder
The recycling and reusing of old rubber.
(4) drainage concrete of the invention can be applied to the middle layer of building basement bottom plate terrace system, hold playing
While weight, realizes drainage water conservancy diversion, dredge the function of steam.Even if make bottom plate terrace system encounter differential settlement etc. can not
In the case where drag factor crack and water leakage, the water of bottom exudation can also be dredged away with steam by drainage concrete layer water conservancy diversion,
Basement surface layer ponding and humidity are avoided, while being damaged prevented also from basement resin terrace because of infiltration or steam.Through
The water of filtering water coagulation soil filtering can be directly discharged to municipal Storm Sewer Network, also collect water recycling and reusing in being used as and save water
Resource.
Specific embodiment
Clear, complete description is carried out to each technical solution of the present invention with reference to embodiments, it is clear that described implementation
Example is only a part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiment of the present invention, this field is common
Technical staff's obtained all other embodiment without making creative work belongs to the present invention and is protected
Range.Those skilled in the art according to method, process route made by following implementation, function equivalent transformation or replace
Generation, all belong to the scope of protection of the present invention within.
Embodiment 1
A kind of building basement drainage concrete of the present embodiment, is made of: thick bone the raw material of following mass percent
Material 76.5%, cement 16.5%, enhancing material 0.70%, high-strength inorganic fiber 0.30%, rubber powder 0.7%, water 5.3%.
Each raw material uses following product in present embodiment:
Coarse aggregate: 10~20mm single-stage matches basaltic broken stone；
Cement: 42.5 cement of P.O of Hubei Yadong Cement Co., Ltd production；
High-strength inorganic fiber: the basalt chopped fiber (cement of Sichuan Aerospace Tuoxin Basalt Industrial Co., Ltd.'s production
With) fibre length be 10mm；
Rubber powder: 100 mesh regnerated rubber powders of Shandong Li Quan Group Co., Ltd production.
Enhancing material is mixed to prepare by the raw material of following mass percent: silicon ash 47.1%, fume colloidal silica 7% are ultra-fine
Metakaolin 35%；Polycarboxylate water-reducer 9%, diisobutyl sodium naphthalene sulfonate 0.2%, one or four butynediols 1.5%, former times purine tree
Glue 0.2%.
The preparation method of the drainage concrete of the present embodiment, includes the following steps:
1) blender is added in coarse aggregate, 30~40s of blender mix is added in 50% water consumption.
2) cement, enhancing material, high-strength inorganic fiber, 30~40s of rubber powder mix are added.
3) it is eventually adding 50~60s of surplus water mix.
Embodiment 2
A kind of building basement drainage concrete of the present embodiment, is made of: thick bone the raw material of following mass percent
Material 79.68%, cement 14.48%, enhancing material 0.58%, high-strength inorganic fiber 0.14%, rubber powder 0.43%, water 4.69%；
The coarse aggregate is lime stone rubble.Enhancing material is mixed to prepare by the raw material of following mass percent: silicon ash 40%, vapor phase method is white
Carbon black 10%, ultra-fine metakaolin 38.75%；Polycarboxylate water-reducer 10%, diisobutyl sodium naphthalene sulfonate 0.1%, one or four butine
Glycol 1%, former times purine natural gum 0.15%.
The other the same as in Example 1.
Embodiment 3
A kind of building basement drainage concrete of the present embodiment, is made of: thick bone the raw material of following mass percent
Material 74.61%, cement 18.09%, enhancing material 0.72%, high-strength inorganic fiber 0.18%, rubber powder 0.54%, water 5.86%；
The coarse aggregate is diabase gravel.Enhancing material is mixed to prepare by the raw material of following mass percent: silicon ash 54.6%, vapor phase method
White carbon black 5%, ultra-fine metakaolin 30%；Polycarboxylate water-reducer 8%, diisobutyl sodium naphthalene sulfonate 0.1%, one or four butynediols
2%, former times purine natural gum 0.3%.The other the same as in Example 1.
Embodiment 4
A kind of building basement drainage concrete of the present embodiment, is made of: thick bone the raw material of following mass percent
Material 76.5%, cement 16.5%, enhancing material 1.0%, high-strength inorganic fiber 0.15%, rubber powder 0.4%, water 5.45%；It is described
High-strength inorganic fiber is alkali-proof glass chopped strand.The other the same as in Example 1.
Embodiment 5
A kind of building basement drainage concrete of the present embodiment, is made of: thick bone the raw material of following mass percent
Material 76.5%, cement 16.5%, enhancing material 0.5%, high-strength inorganic fiber 0.4%, rubber powder 1.2%, water 4.90%；It is described thick
Aggregate is that 5~10mm single-stage matches basaltic broken stone.The other the same as in Example 1.
Comparative example 1
Compared to embodiment 1, enhancing material in embodiment 1 is replaced with epoxy resin rubber powder, other and embodiment 1 by this comparative example
It is identical.
Comparative example 2
Compared to embodiment 1, enhancing material in embodiment 1 is replaced with commercially available common pervious concrete by this comparative example to be enhanced
Material, it is other same as Example 1.
Comparative example 3
Compared to embodiment 1, this comparative example will former times purine natural gum removes in enhancing material in embodiment 1, other with 1 phase of embodiment
Together.
Comparative example 4
Compared to embodiment 1, high-strength inorganic fiber is not contained in this comparative example, it is other same as Example 1.
Comparative example 5
Compared to embodiment 1, rubber powder is not contained in this comparative example, it is other same as Example 1.
The drainage concrete that embodiment and comparative example is prepared is tested as follows: compression strength, flexural strength are saturating
It is aqueous test referring to Cheng Juan Master's thesis " experimental study of proportion of porous concrete mixture and its performance " in 3.1.2 with
3.1.3 the method in section carries out；Master's thesis " the pervious concrete of porosity, permeability test test method reference Gu Xiaofan
Preparation and its performance test research " in 2.4.2 and 2.4.3 section in method carry out: shock resistance test take professional standard
Method specified in " fiber concrete test method standard " CECS13:2009.Test result is shown in Table 1.
In addition it is also tested for the performance of drainage agent on crack resistance of concrete blocking, test is preceding according to each embodiment of the following steps processing and right
The concrete sample of ratio: the concrete cylindrical test specimen for being a height of 50mm of 100mm by the diameter after coefficient of permeability is tested
It is again placed in permeable cylinder, after the side wall sealing of cylinder test specimen and permeable cylinder, is initially added into 5000ml from surface of test piece
After water stands 24 hours after the exudation of the lower surface of cylinder test specimen 5000ml sewage is added, after 24 hours again in sewage again
Secondary addition sewage, is repeated 5 times addition sewage in total, to simulate in nature situation in rainwater containing the drainage coagulation in the case of silt
The case where native filter sewage.After the drainage concrete of embodiment and comparative example is handled in the same manner, carry out again respectively
Coefficient of permeability test, the coefficient of permeability after as blocking.Coefficient of permeability after blocking is thoroughly than the coefficient of permeability after=blocking/initial
Water coefficient.Test result is shown in Table 1.
The intensity of the building basement of embodiment of the present invention drainage concrete and permeable system it can be seen from test result
Number is adjustable, and when the intensity for guaranteeing drainage concrete is higher than 16MPa or more, coefficient of permeability can be up to 8mm/s or more, and this
The drainage concrete of invention has preferable impact resistance and anti-silt plugging performance, after using the sewage treatment containing silt thoroughly
Water coefficient ratio is more than 65%；Especially drainage concrete comprehensive performance made from embodiment 1 is best.
Table 1: the test result of drainage concrete
And individually comparative example 1,2,3,4 and embodiment 1 are it can be found that if changing enhancing material of the invention, removing high-strength nothing
Machine fiber or rubber powder can all be substantially reduced the intensity, shock resistance and permeability rate of drainage concrete, and significantly drop
Its low performance of anti-blockage, after the sewage treatment containing silt permeability rate be greatly reduced, the coefficient of permeability after blocking is reduced to
The 15% of insufficient initial coefficient of permeability；It is most significant especially to change the influence that enhancing material generates the comprehensive performance of concrete.
In view of the foregoing it is apparent that the raw materials such as enhancing material of the invention, high-strength inorganic fiber and rubber powder are that have mutually
Synergistic effect, the synthesis of drainage concrete could more be significantly improved using various raw materials by only arranging in pairs or groups within the scope of the present invention
Performance.Each substance, which cooperates, in of the invention not only can be improved intensity, cracking resistance and the scour & wear resistance energy of concrete,
It can also prevent concrete mix from isolating sinking plug-hole, make inside concrete and external pores more evenly, and then improve coagulation
The water penetration of soil, and the impurity such as silt can be blocked in outside concrete by drainage concrete made of the present invention, be prevented interior
Portion's hole is blocked, and extends the service life of drainage concrete.
The basic principles, main features and advantages of the invention have been shown and described above, while there has been shown and described that
The embodiment of the present invention, for the ordinary skill in the art, it is possible to understand that do not departing from the principle of the present invention and essence
A variety of change, modification, replacement and modification can be carried out to these embodiments in the case where mind, the scope of the present invention is by appended right
It is required that and its equivalent restriction.
Claims (8)
1. a kind of building basement drainage concrete, which is characterized in that be made of the raw material of following mass percent: coarse aggregate
70%~80%, cement 13%~20%, enhancing material 0.5%~1.0%, high-strength inorganic fiber 0.13%~0.4%, rubber powder
0.4%-1.2%, water 4%~6%；The partial size of the coarse aggregate is 5~20mm；Enhancing material be active nano silica-aluminum materials with
Organic functional molecular compound additive.
2. building basement according to claim 1 drainage concrete, which is characterized in that the active nano sa
Material is made of silicon ash, fume colloidal silica and ultra-fine metakaolin；The organic functional molecular is by polycarboxylate water-reducer, two different
Sodium butylnaphthalenesulfonate, one or four butynediols and former times purine natural gum composition；The mass percent of each component in the enhancing material are as follows: silicon
Ash 40~55%, fume colloidal silica 5~10%, ultra-fine metakaolin 30~40%；Polycarboxylate water-reducer 8~10%, two is different
0.1~0.2%, 1 butynediols 1~2% of sodium butylnaphthalenesulfonate, former times purine natural gum 0.15~0.3%.
3. building basement according to claim 1 drainage concrete, which is characterized in that the coarse aggregate is lime stone
At least one of rubble, Black Warrior stone rubble, diabase gravel, granite stones, partial size are 5~10mm or 10~20mm.
4. building basement according to claim 1 drainage concrete, which is characterized in that the cement is 42.5 or more
The ordinary portland cement of grade.
5. building basement according to claim 1 drainage concrete, which is characterized in that the rubber powder be 80~
100 mesh rubber powder of waste tire.
6. building basement according to claim 1 drainage concrete, which is characterized in that the high-strength inorganic fiber is
Basalt chopped fiber or alkali-proof glass chopped strand, and high-strength inorganic fiber is suitable with modulus of elasticity of concrete.
7. according to claim 1 to 6 described in any item building basements drainage concrete, which is characterized in that by following matter
Measure the raw material composition of percentage: coarse aggregate 76.5%, cement 16.5%, enhancing material 0.70%, high-strength inorganic fiber 0.30%, rubber
Rubber powder 0.7%, water 5.3%；The coarse aggregate is that 10~20mm single-stage matches basaltic broken stone；High-strength inorganic fiber is that basalt is short
Cut fiber, fibre length 10mm；Enhancing material is made of the raw material of following mass percent: silicon ash 47.1%, vapor phase method hard charcoal
Black 7%, ultra-fine metakaolin 35%；Polycarboxylate water-reducer 9%, diisobutyl sodium naphthalene sulfonate 0.2%, one or four butynediols
1.5%, former times purine natural gum 0.2%.
8. the preparation method of claims 1 to 6 described in any item building basements drainage concrete, which is characterized in that packet
Include following steps:
1) blender is added in coarse aggregate, 30~40s of blender mix is added in 50% water consumption；
2) cement, enhancing material, high-strength inorganic fiber, 30~40s of rubber powder mix are added；
3) it is eventually adding 50~60s of surplus water mix.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111662052A (en) * | 2020-05-13 | 2020-09-15 | 广东电网有限责任公司 | Modified rubber pervious concrete and preparation method thereof |
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