CN106630819A - Anti-efflorescence sea water coral aggregate concrete block - Google Patents

Anti-efflorescence sea water coral aggregate concrete block Download PDF

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Publication number
CN106630819A
CN106630819A CN201610973322.3A CN201610973322A CN106630819A CN 106630819 A CN106630819 A CN 106630819A CN 201610973322 A CN201610973322 A CN 201610973322A CN 106630819 A CN106630819 A CN 106630819A
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China
Prior art keywords
seawater
coral
aggregate concrete
aggregate
building block
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Pending
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CN201610973322.3A
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Chinese (zh)
Inventor
韩宇栋
郭�东
岳清瑞
紫民
郝挺宇
连伟
侯兆新
夏其昌
王建平
苏波
张国志
傅军
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NAVAL ENGINEERING DESIGN RESEARCH BUREAU PLA
Pla 91058 Force
Central Research Institute of Building and Construction Co Ltd MCC Group
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NAVAL ENGINEERING DESIGN RESEARCH BUREAU PLA
Pla 91058 Force
Central Research Institute of Building and Construction Co Ltd MCC Group
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Priority to CN201610973322.3A priority Critical patent/CN106630819A/en
Publication of CN106630819A publication Critical patent/CN106630819A/en
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    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02Compositions 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
    • C04B28/04Portland cements
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/009After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/52Multiple coating or impregnating multiple coating or impregnating with the same composition or with compositions only differing in the concentration of the constituents, is classified as single coating or impregnation
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00008Obtaining or using nanotechnology related materials
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20Resistance against chemical, physical or biological attack
    • C04B2111/2023Resistance against alkali-aggregate reaction

Abstract

The invention provides an anti-efflorescence sea water coral aggregate concrete block. The anti-efflorescence sea water coral aggregate concrete block is prepared from sea water coral aggregate concrete, wherein the sea water coral aggregate concrete is composed of the following raw materials in percentage by mass: 7-11% of silicate cement, 3-4.5% of sea water coral aggregate concrete salt fixing agent, 5-7.5% of sea water and 77-85% of coral reef sand aggregate mixture; the doping amount of sea water concrete water-reducing agent accounts for 0.2-0.4% of the mass of a cementing material; and the cementing material is a mixture of the silicate cement and the sea water coral aggregate concrete salt fixing agent. The sea water coral aggregate concrete block has the advantage of realizing long-term service with no efflorescence and good durability on oceanic island reefs in China and under other severe natural environments; in the molding and curing period, the sea water coral aggregate concrete block can realize three NO NEEDS, i.e. no need of sinter molding, no need of autoclaving and no need of fresh water maintenance; and meanwhile, the sea water coral aggregate concrete block has the characteristics of low comprehensive cost, greenness, energy saving, high efficiency and the like.

Description

A kind of seawater coral aggregate concrete building block of the anti-accumulation of salt in the surface soil
Technical field
The present invention relates to civil engineering and ocean engineering field of material technology, more particularly to a kind of seawater coral of the anti-accumulation of salt in the surface soil Aggregate concrete building block.
Background technology
Carry out the building enclosure construction of house construction engineering in China's Reef in Chinese South Sea apart from more than 1000 kilometers of continent, need to make Use substantial amounts of concrete segment.In current state of the art, typically all in continent prefabricating common concrete building block, to regulation Building construction is carried out to each islands and reefs using large ship long sea voyage after age.Obviously, conventional concrete of the prior art The scheme of building block, freight volume is big, high energy consumption, stevedoring are loaded down with trivial details, and is usually limited by milder metocean conditions and time-consuming, fortune way wind Wave jolts big and the breakage rate that collides with that cause is higher.
China's Reef in Chinese South Sea more than 95% is coral island, and local coral reef sand storage is huge, cost of winning is low, is latent Natural region building material, especially relatively low construction material is particularly fitted to be required to this kind of strength grade of concrete segment With.Therefore, increasingly recommending coral reef sand aggregate in current Reef in Chinese South Sea house construction engineering is used for preparing concrete segment Building enclosure.
However, each islands and reefs of China South Sea close on equator, long-term high temperature is exposed to the sun, high humidity (relative humidity may be up to 95%) is more Rain, high salt fog, natural environment is more harsh.The simple coagulation using by common portland cement, the making of coral reef sand aggregate Easily there is the diseases such as the accumulation of salt in the surface soil, analysis salt in earth building blocks, aesthetic property, applicability and the durability built is affected under long service.
To sum up, it is local in Reef in Chinese South Sea, gather materials on the spot, as far as possible using the natural region raw material of islands and reefs:Coral reef sand Preparing the concrete segment used by islands and reefs house, extremely urgent, economic and social benefit is huge, also agrees with green for aggregate, seawater The theory of color energy-conserving and environment-protective.
The content of the invention
In view of this, the invention provides a kind of seawater coral aggregate concrete building block of anti-accumulation of salt in the surface soil, with China sea It is on active service and the long-term advantage without the accumulation of salt in the surface soil, good endurance under the extreme natural environments such as foreign islands and reefs, and can during shaping and maintenance To realize " three exempt from ":Non-sintered shaping, non-evaporating pressure, exempt to spill fresh water maintenance, while also having, integrated cost is low, green energy conservation is efficient The features such as.
What technical scheme was specifically realized in:
A kind of seawater coral aggregate concrete building block of anti-accumulation of salt in the surface soil, is made up, the seawater of seawater coral aggregate concrete Coral aggregate concrete is made up of following raw materials according example in mass ratio:
Portland cement 7%~11%, seawater coral aggregate concrete solid salt agent 3%~4.5%, seawater 5%~ 7.5%, coral reef sand aggregate mixture 77%~85%, seawater coagulation soil water reducer volume accounts for the 0.2% of Binder Materials quality ~0.4%;
The Binder Materials is the mixture of portland cement and the solid salt agent of seawater coral aggregate concrete.
Preferably, the seawater coral aggregate concrete per cubic meter is made up of following raw materials according by quality:
Portland cement 175kg, the solid salt agent 75kg of seawater coral aggregate concrete, seawater 136kg, islands and reefs coral reef sand bone Material mixture 1821kg, seawater coagulation soil water reducer 0.8kg.
Preferably, the seawater coral aggregate concrete per cubic meter is made up of following raw materials according by quality:
Portland cement 240kg, the solid salt agent 100kg of seawater coral aggregate concrete, seawater 165kg, islands and reefs coral reef sand Aggregate mixture 1729kg, seawater coagulation soil water reducer 1.4kg.
Preferably, still further comprising in the solid salt agent of the seawater coral aggregate concrete:
SILICA FUME 15%~25%, nano-silica powder 1.5%~3%, higher territory 12%~24% and breeze 50%~64%.
Preferably, the particle diameter of the coral reef sand aggregate in the coral reef sand aggregate mixture is 0~13mm, its sand coarse aggregate ratio is not Higher than 60%.
Preferably, the sand coarse aggregate ratio of the coral reef sand aggregate is 0.35~0.40, clay content is not higher than 5%.
Preferably, the porosity of the coral reef sand aggregate is 30%~45%, saturated water absorption is 20%~30%.
Preferably, the seawater coagulation soil water reducer is modified viscosity reduction type polycarboxylate water-reducer.
Preferably, being also covered with being smeared by brushing seawater coral on the outer surface of the seawater coral aggregate concrete building block The seawater coral decorative mortar surface layer that facing sand is starched and formed;
The outer surface of the seawater coral decorative mortar surface layer is also covered with by brushing modified acrylic acid emulsion or double groups Part water-base epoxy and the accumulation of salt in the surface soil seal coat that formed.
Preferably, the main chemical compositions of the accumulation of salt in the surface soil seal coat are the modified propylene yogurt with infiltration film forming characteristics Liquid;
The modified acrylic acid emulsion is:The emulsion that the stoste of modified acrylic acid emulsion is formed after diluting with fresh water;
The stoste of the modified acrylic acid emulsion is less than or equal to 1 with the mass ratio of fresh water:3.
Preferably, the stoste of the modified acrylic acid emulsion is 1 with the mass ratio of fresh water:1.
Preferably, the seawater coral decorative mortar, is the original of the seawater coral aggregate concrete building block of the anti-accumulation of salt in the surface soil Reject in material after corallite coarse aggregate, the seawater coral mortar prepared by surplus stock;
The particle diameter of the corallite coarse aggregate is 5-13mm.
Preferably, the strength grade of the portland cement is PO42.5.
Preferably, the seawater coral aggregate concrete building block of the anti-accumulation of salt in the surface soil is solid block or building-block;
When the seawater coral aggregate concrete building block of the anti-accumulation of salt in the surface soil is building-block, the hollow rate of the building-block For 30%~50%.
As seen from the above technical solution, the seawater coral aggregate concrete building block of the above-mentioned anti-accumulation of salt in the surface soil in the present invention, adopts The solid salt agent of Portland cement, seawater coral aggregate concrete, islands and reefs coral reef sand aggregate mixture, seawater coagulation soil diminishing Agent and natural sea-water or the preparation shaping that once slightly desalinizes seawater, by the agent of seawater coral aggregate concrete solid salt salt is internally consolidated Reinforcing, reduces accumulation of salt in the surface soil passage, accumulation of salt in the surface soil salinity transfer is effectively prevented, hence in so that the seawater coral aggregate concrete building block is at me Can for a long time without the accumulation of salt in the surface soil, good endurance when being on active service under state's Reef in Chinese South Sea extreme natural environment, and can during shaping and maintenance To realize " three exempt from ":Non-sintered shaping, non-evaporating pressure, exempt to spill fresh water maintenance;Simultaneously as above-mentioned seawater coral aggregate concrete Islands and reefs coral reef sand aggregate mixture and seawater in the mixing raw material of building block is retrieved from Reef in Chinese South Sea locality, rate of gathering materials on the spot May be up to 85%, it is possible to achieve islands and reefs localize production and marketing, without carrying out long sea voyage, therefore efficiently avoid traditional coagulation High energy consumption that earth building blocks are faced when long sea voyage is carried out, high cost, stevedoring is loaded down with trivial details, the breakage rate that collides with is high, by sea situation The shortcomings of meteorological condition is restricted and takes poorly efficient;And due to being to adopt seawater, therefore valuable freshwater resources can be also saved, it is comprehensive Close low cost, green energy conservation efficiently, can be widely applied to China's Reef in Chinese South Sea house construction engineering building enclosure (for example, frame structure Retaining wall in house etc.).
Specific embodiment
To make technical scheme and advantage become more apparent, below in conjunction with specific embodiment, to present invention work Further details of explanation.
The seawater coral aggregate concrete building block of the anti-accumulation of salt in the surface soil in the embodiment of the present invention is by seawater coral aggregate concrete system Into, wherein, the seawater coral aggregate concrete is made up of following raw materials according example in mass ratio:
Portland cement 7%~11%, seawater coral aggregate concrete solid salt agent 3%~4.5%, seawater 5%~ 7.5%, coral reef sand aggregate mixture 77%~85%, seawater coagulation soil water reducer volume accounts for the 0.2% of Binder Materials quality ~0.4%;The Binder Materials is the mixture of portland cement and the solid salt agent of seawater coral aggregate concrete.
Preferably, in a particular embodiment of the present invention, the strength grade of the portland cement is PO42.5.
Preferably, in a particular embodiment of the present invention, can be with the solid salt agent of the seawater coral aggregate concrete Further include:SILICA FUME 15%~25%, nano-silica powder 1.5%~3%, higher territory 12%~24% and breeze 50%~64%.
Preferably, in a particular embodiment of the present invention, the essential mineral of the islands and reefs coral reef sand aggregate mixture into It is divided into aragonite and calcite;Coral reef sand aggregate in coral reef sand aggregate mixture can be dug from South Sea coral island, aggregate Particle diameter is 0~13mm, and its sand coarse aggregate ratio is preferably not higher than 60%;Preferably, the sand coarse aggregate ratio of the coral reef sand aggregate be 0.35~ 0.40, clay content is not higher than 5%;The porosity of coral reef sand aggregate is generally 30%~45%, and saturated water absorption is generally 20%~30%, the natural pre- water absorption rate of coral reef sand aggregate is generally 8%~14% under islands and reefs natural environment.
Preferably, in a particular embodiment of the present invention, the seawater coagulation soil water reducer is modified viscosity reduction type polycarboxylic acids Water reducer, it can play efficient water-reduction under the conditions of seawater and coral reef sand aggregate mix.
In addition, in the inventive solutions, when above-mentioned seawater coral aggregate concrete building block adopts normal silicate The solid salt agent of cement, seawater coral aggregate concrete, coral reef sand aggregate mixture, seawater coagulation soil water reducer, natural sea-water or Once slightly desalinize seawater after preparation shaping, can be built using seawater coral masonry mortar after above-mentioned building block block natural curing hardening Build.
Further, can also in the outer surface brushing seawater coral decorative mortar of seawater coral aggregate concrete building block and A seawater coral decorative mortar surface layer is formed, it is then modified in the outer surface brushing of the seawater coral decorative mortar surface layer again Acrylic emulsion and form an accumulation of salt in the surface soil seal coat.
It is therefore advantageous to, in a particular embodiment of the present invention, the outer surface of the seawater coral aggregate concrete building block On be also covered with the seawater coral decorative mortar surface layer that formed by brushing seawater coral decorative mortar;The seawater coral is smeared The outer surface of face mortar surface layer is also covered with the accumulation of salt in the surface soil formed by brushing modified acrylic acid emulsion or double-component aqueous epoxy Seal coat.
In of the invention one preferably specific embodiment, the seawater coral decorative mortar surface layer outer surface is formed at On, have interface concurrently and strengthen the accumulation of salt in the surface soil seal coat of characteristic, its main chemical compositions is to change with infiltration film forming characteristics Property acrylic emulsion.Preferably, in a particular embodiment of the present invention, the modified acrylic acid emulsion is:Modified propylene yogurt The emulsion that the stoste of liquid is formed after diluting with fresh water;The stoste of the modified acrylic acid emulsion and the mass ratio of fresh water be less than or Equal to 1:3.Preferably, in a particular embodiment of the present invention, the stoste of the modified acrylic acid emulsion and the mass ratio of fresh water Can be 1:1.By the modified acrylic acid emulsion in the road of outer surface brushing 1~3 of the seawater coral decorative mortar surface layer, you can Form the accumulation of salt in the surface soil seal coat.
Preferably, in a particular embodiment of the present invention, the seawater coral decorative mortar, is the seawater of the anti-accumulation of salt in the surface soil Reject in the raw material of coral aggregate concrete building block after corallite coarse aggregate (particle diameter is 5-13mm), surplus stock it is prepared and Into seawater coral mortar.
In the inventive solutions, the effect of the seawater coral decorative mortar surface layer is mainly:
1st, body of wall basic unit is levelling:The body of wall just built by laying bricks or stones can not possibly be substantially flat, more rough porous, rugged, if Now Puttying or swabbing/paint, then special waste of materials.Therefore, by forming seawater coral decorative mortar surface layer, can be with Realize that body of wall basic unit is levelling, so as to save the painting brush material for subsequently being used, but also aesthetic property can be improved.
2nd, the adaptability that body of wall investment precoat in future or paint deform to the cold and hot and dry and wet of walling unit is improved, is improved The crack resistance of facing.
Therefore, in the inventive solutions, when decorative mortar construction is completed, seawater coral decorative mortar surface layer is formed Afterwards, further plus the interfacial agents (to improve the anti-accumulation of salt in the surface soil ability of body of wall, in prior art of one layer of acrylic emulsion can also be applied Conventional body of wall typically without this procedure), then drape over one's shoulders Puttying or gypsum, investment precoat or paint are finally applied again.
In addition, in the inventive solutions, the accumulation of salt in the surface soil seal coat formed by brushing modified acrylic acid emulsion, Then can in ooze film forming, can steadily in the long term, accumulation of salt in the surface soil salinity moves outside inside high-efficiency enclosed seawater coral aggregate concrete blockwork Passage, and interfacial adhesion can be strengthened, body of wall extraneous adornment surface layer (putty and gypsum, priming paint and finish paint) is improved to this accumulation of salt in the surface soil The protection of seal coat.
Preferably, in a particular embodiment of the present invention, the seawater coral aggregate concrete building block of the anti-accumulation of salt in the surface soil, can be Solid block, alternatively building-block.If preferably, the seawater coral aggregate concrete building block of the anti-accumulation of salt in the surface soil is hollow building Block, then the hollow rate general recommendations of the building-block is 30%~50%.
Preferably, in a particular embodiment of the present invention, the seawater is natural sea-water or once slightly desalinizes seawater.
Preferably, in a particular embodiment of the present invention, the life of the seawater coral aggregate concrete building block of the anti-accumulation of salt in the surface soil Into method:By the various raw materials, in islands and reefs, local fixed plant area adopts fixed production line, or on the island of the building block application Produce and supply on the spot, nearby using movable container formula production line near reef target structures.
In the inventive solutions, the seawater coral aggregate concrete building block of the above-mentioned anti-accumulation of salt in the surface soil can pass through following institute The mechanism stated or process realize that during shaping and maintenance " three exempt from ", integrated cost is low, green section for a long time without the accumulation of salt in the surface soil, good endurance Characteristic can efficiently be waited:
(1) it is long-term without the accumulation of salt in the surface soil, good endurance:
The solid salt agent of seawater coral aggregate concrete in the raw material of the seawater coral aggregate concrete building block of the anti-accumulation of salt in the surface soil, Can stage by stage, chemical bond or physical absorption fix seawater and coral reef sand aggregate in Cl-、SO4 2-、Ca2+、Na+(K+) etc. from Son, Gu and salt reduces accumulation of salt in the surface soil source;Can also multiple dimensioned, stage by stage be densified concrete segment cement mortar base material and slurry-aggregate circle Face transition region, reduces accumulation of salt in the surface soil passage, effectively prevents accumulation of salt in the surface soil salinity transfer.
The seawater coral decorative mortar for performing the seawater coral aggregate concrete block surfaces in the anti-accumulation of salt in the surface soil, outside it The accumulation of salt in the surface soil seal coat formed by the modified acrylic acid emulsion brushed, can in ooze film forming, can steadily in the long term, high-efficiency enclosed it is extra large The passage that moves outside of water coral aggregate concrete blockwork inside accumulation of salt in the surface soil salinity, and interfacial adhesion can be strengthened, improve body of wall Protection of the extraneous adornment surface layer (putty and gypsum, priming paint and finish paint) to this accumulation of salt in the surface soil seal coat.
Therefore, salt reinforcing is internally consolidated by the agent of seawater coral aggregate concrete solid salt, is existed using modified acrylic acid emulsion Outer closures accumulation of salt in the surface soil passage, " interior strong outer anti-" comprehensive to realize seawater coral aggregate concrete building block for a long time without the accumulation of salt in the surface soil, durable Property is good.
(2) during being molded and conserve " three exempt from ":
The seawater coral aggregate concrete building block of the anti-accumulation of salt in the surface soil, after its all kinds of raw material mix, Jing block machines Vibration-extrusion is molded, the natural curing hardening under the natural temperature and humidity conditions of islands and reefs, can be non-sintered.
The rainy high humidity of China's Reef in Chinese South Sea (relative humidity 90%~98%), (temperature on average is up to 30 DEG C to the high temperature that is exposed to the sun, 2- Daytime in July, surface temperature was up to 55 DEG C), long-term sunshine is sufficient.This hot and humid natural environmental condition is described anti-general The seawater coral aggregate concrete building block of alkali provides splendid natural curing condition, non-evaporating can press, exempts to spill fresh water maintenance.
The islands and reefs coral reef sand aggregate, loose porous, porosity is generally 30%~45%, and (main body aperture is distributed in In the range of 200nm~10000nm), saturated water absorption is generally 20%~30%, coral reef sand aggregate day under islands and reefs natural environment So pre- water absorption rate is generally 8%~14%.Coral reef sand aggregate absorbs water in advance and after mix shaping, in building block course of hardening In, when moisture is substantially reduced because of hydrated cementitious and moisture diffusion in cement slurry hole around coral reef sand aggregate, The pre-absorption moisture being stored in coral reef sand aggregate hole is discharged in time in cement mortar around and is supplemented, and moves in circles Until coral reef sand aggregate hole dehydration is finished.Therefore, by using South Sea coral reef sand aggregate is loose porous, pre- water absorption rate is high And the characteristic of water Self-curing is returned, realization can be aided in exempt to spill fresh water maintenance.
To sum up, during being capable of achieving the seawater coral aggregate concrete block forming of the anti-accumulation of salt in the surface soil and conserving " three exempt from ":Exempt from Sinter molding, non-evaporating pressure, exempt to spill fresh water maintenance.
(3) integrated cost is low, green energy conservation is efficient:
The seawater coral aggregate concrete building block of the anti-accumulation of salt in the surface soil, the islands and reefs coral reef sand aggregate mixing in its mixing raw material Thing and seawater are retrieved from Reef in Chinese South Sea locality, and the rate of gathering materials on the spot may be up to 85%.Islands and reefs localize production and marketing, eliminate from 1000 The high energy consumption that faced during the large long sea voyage normal concrete building block in many kilometers of continents in addition, high cost, stevedoring are numerous The trivial, breakage rate that collides with is high, restricted by sea situation meteorological condition and it is time-consuming poorly efficient the shortcomings of;Using seawater, can also save in Reef in Chinese South Sea About valuable freshwater resources.
Under contrast, a kind of seawater coral aggregate concrete building block of anti-accumulation of salt in the surface soil provided by the present invention is applied to China The retaining wall of Reef in Chinese South Sea framework house, with integrated cost it is low, green energy conservation is efficient the characteristics of.
Hereinafter technical scheme will be described in detail by taking several specific implementations as an example.
Embodiment one
In the present embodiment, the seawater coral aggregate concrete building block of the anti-accumulation of salt in the surface soil, its folk prescription (i.e. every cubic meter) sea Water coral aggregate concrete is made up of following raw materials according by quality:
Portland cement 175kg, the solid salt agent 75kg of seawater coral aggregate concrete, seawater 136kg, islands and reefs coral reef Sand aggregate mixture (digging on coral island, particle diameter is 0~13mm) 1821kg, seawater coagulation soil water reducer 0.8kg.
In addition, preferably, the strength grade of the Portland cement is PO42.5.
Preferably, the solid salt agent of the seawater coral aggregate concrete by SILICA FUME, nano-silica powder, higher territory and Breeze is constituted.
Preferably, in the islands and reefs coral reef sand aggregate mixture, the coral reef sand in coral reef sand aggregate mixture Aggregate pick is 0~13mm from South Sea coral island, aggregate size, and sand coarse aggregate ratio is 0.39, and clay content is 3%;Coral reef sand aggregate Pre- water absorption rate is 12%, and saturated water absorption is 27%.
Preferably, the accumulation of salt in the surface soil seal coat is modified acrylic acid emulsion.
Preferably, the seawater coagulation soil water reducer is modified viscosity reduction type polycarboxylate water-reducer.
Preferably, the seawater is natural sea-water or once slightly desalinizes seawater.
Preferably, the generation method of the seawater coral aggregate concrete building block of the described anti-accumulation of salt in the surface soil:By the various raw materials, It is produced in situ in and supplies using movable container formula production line near the target islands and reefs building of the building block application, can be obvious Having bad luck in the islands and reefs of the seawater coral aggregate concrete building block for reducing coral reef sand aggregate or the anti-accumulation of salt in the surface soil.
In the present embodiment, it is unburned during the seawater coral aggregate concrete building block of the anti-accumulation of salt in the surface soil, blanks and moulding and conserving to form Type, non-evaporating pressure, exempt from watering maintenance, the outdoor natural curing 28d of Reef in Chinese South Sea, building block hollow rate be 50% when, its bulk pressure resistance Spend for 8.2MPa;When building block is solid, its bulk compression strength is 16.0MPa;Its rate of gathering materials on the spot is 88.6%, long service Surface of wall is without the accumulation of salt in the surface soil.
Embodiment two
In the present embodiment, the seawater coral aggregate concrete building block of the anti-accumulation of salt in the surface soil, its (i.e. per cubic meter) seawater coral Coral aggregate concrete is made up of following raw materials according by quality:
Portland cement 240kg, the solid salt agent 100kg of seawater coral aggregate concrete, seawater 165kg, islands and reefs coral Reef sand aggregate mixture (digging on coral island, particle diameter is 0~13mm) 1729kg, seawater coagulation soil water reducer 1.4kg.
Preferably, in the islands and reefs coral reef sand aggregate mixture, coral reef sand is dug from South Sea coral island, aggregate grain Footpath is 0~13mm, and sand coarse aggregate ratio is 0.37, and clay content is 2%;The pre- water absorption rate of coral reef sand aggregate is 10%, and saturated water absorption is 23%.
In the present embodiment, remaining concrete raw material used by the seawater coral aggregate concrete building block of the anti-accumulation of salt in the surface soil And building block generation method with it is identical in embodiment one.
In the present embodiment, it is unburned during the seawater coral aggregate concrete building block of the anti-accumulation of salt in the surface soil, blanks and moulding and conserving to form Type, non-evaporating pressure, exempt from watering maintenance, the outdoor natural curing 28d of Reef in Chinese South Sea, building block hollow rate be 50% when, its bulk pressure resistance Spend for 11.5MPa;When building block is solid, its bulk compression strength is 22.0MPa;Its rate of gathering materials on the spot is 84.7%, long-term clothes Labour surface of wall is without any accumulation of salt in the surface soil.
In addition, in the inventive solutions, the seawater coral aggregate concrete building block of the above-mentioned anti-accumulation of salt in the surface soil can be adopted The solid salt agent of Portland cement, seawater coral aggregate concrete, islands and reefs coral reef sand aggregate mixture (are adopted on coral island Pick, particle diameter be 0~13mm), seawater coagulation soil water reducer, natural sea-water or once slightly desalinize seawater preparation shaping, building block block Built by laying bricks or stones using seawater coral masonry mortar again after natural curing hardening, after its surface seawater coral decorative mortar is performed, treat this Having interface concurrently in its external coating again in 24 hours after surface layer hardening strengthens the accumulation of salt in the surface soil seal coat of characteristic, can perform after 24 hours Extraneous adornment surface layer, had both completed the anti-accumulation of salt in the surface soil body of wall of seawater coral aggregate concrete building block.Therefore, by seawater coral aggregate coagulation Salt reinforcing is internally consolidated in the agent of soil solid salt, and using modified acrylic acid emulsion outer closures coating accumulation of salt in the surface soil passage is intercepted, " interior strong outer anti-" Comprehensively realize seawater coral aggregate concrete building block for a long time without the accumulation of salt in the surface soil;By being enriched using China's Reef in Chinese South Sea locality storage Coral reef sand aggregate and the region natural material of seawater prepare shaping, the rate of gathering materials on the spot may be up to 85%;By using South Sea coral reef sand aggregate is loose porous, pre- water absorption rate is high and the characteristic of Self-curing, (relatively wet using the rainy high humidity of Reef in Chinese South Sea Degree 90%~98%), the natural environmental condition of the high temperature that is exposed to the sun, it is capable of achieving seawater coral aggregate concrete block forming and curing period Between " three exempt from ":Non-sintered shaping, non-evaporating pressure, exempt from watering maintenance.
To sum up, the seawater coral aggregate concrete building block of the above-mentioned anti-accumulation of salt in the surface soil in the present invention, can be applicable to China Nan Haidao Reef house construction engineering building enclosure (for example, retaining wall of framework house etc.), it is possible to resolve using normal concrete building block skill The problem for needing the time and effort consuming of the common building block of large long sea voyage poorly efficient, with high costs during art scheme;Can solve using pure common The problems such as portland cement, coral reef sand aggregate, seawater make the accumulation of salt in the surface soil, the analysis salt disease that occur during conventional coral building block;Institute Non-sintered shaping, non-evaporating pressure are also capable of achieving during stating seawater coral aggregate concrete block forming and maintenance, exempt from watering maintenance.Cause This, gathers materials on the spot rate high (ratio is more than 85%), long-term " three exempt from " without the accumulation of salt in the surface soil, shaping and during conserving, economical suitable with islands and reefs With durable, the green energy conservation activity beneficial such as efficiently.
Presently preferred embodiments of the present invention is the foregoing is only, not to limit the present invention, all essences in the present invention Within god and principle, any modification, equivalent substitution and improvements done etc. should be included within the scope of protection of the invention.

Claims (14)

1. the seawater coral aggregate concrete building block of a kind of anti-accumulation of salt in the surface soil, it is characterised in that the seawater coral aggregate concrete is built Block is made up of seawater coral aggregate concrete, and the seawater coral aggregate concrete is made up of following raw materials according example in mass ratio:
Portland cement 7%~11%, seawater coral aggregate concrete solid salt agent 3%~4.5%, seawater 5%~7.5%, coral Coral reef sand aggregate mixture 77%~85%, seawater coagulation soil water reducer volume accounts for the 0.2%~0.4% of Binder Materials quality;
The Binder Materials is the mixture of portland cement and the solid salt agent of seawater coral aggregate concrete.
2. seawater coral aggregate concrete building block according to claim 1, it is characterised in that the seawater coral bone per cubic meter Material concrete is made up of following raw materials according by quality:
Portland cement 175kg, the solid salt agent 75kg of seawater coral aggregate concrete, seawater 136kg, islands and reefs coral reef sand aggregate is mixed Compound 1821kg, seawater coagulation soil water reducer 0.8kg.
3. seawater coral aggregate concrete building block according to claim 1, it is characterised in that the seawater coral bone per cubic meter Material concrete is made up of following raw materials according by quality:
Portland cement 240kg, the solid salt agent 100kg of seawater coral aggregate concrete, seawater 165kg, islands and reefs coral reef sand aggregate Mixture 1729kg, seawater coagulation soil water reducer 1.4kg.
4. seawater coral aggregate concrete building block according to claim 1, it is characterised in that the seawater coral aggregate is mixed Still further comprise in solidifying native solid salt agent:
SILICA FUME 15%~25%, nano-silica powder 1.5%~3%, higher territory 12%~24% and breeze 50%~ 64%.
5. seawater coral aggregate concrete building block according to claim 1, it is characterised in that:
The particle diameter of the coral reef sand aggregate in the coral reef sand aggregate mixture is 0~13mm, and its sand coarse aggregate ratio is not higher than 60%.
6. seawater coral aggregate concrete building block according to claim 5, it is characterised in that:
The sand coarse aggregate ratio of the coral reef sand aggregate is 0.35~0.40, and clay content is not higher than 5%.
7. seawater coral aggregate concrete building block according to claim 6, it is characterised in that:
The porosity of the coral reef sand aggregate is 30%~45%, and saturated water absorption is 20%~30%.
8. seawater coral aggregate concrete building block according to claim 1, it is characterised in that:
The seawater coagulation soil water reducer is modified viscosity reduction type polycarboxylate water-reducer.
9. seawater coral aggregate concrete building block according to claim 1, it is characterised in that:
Shape is also covered with by brushing seawater coral decorative mortar on the outer surface of the seawater coral aggregate concrete building block Into seawater coral decorative mortar surface layer;
The outer surface of the seawater coral decorative mortar surface layer is also covered with by brushing modified acrylic acid emulsion or double-component water Property epoxy and the accumulation of salt in the surface soil seal coat that formed.
10. seawater coral aggregate concrete building block according to claim 9, it is characterised in that:
The main chemical compositions of the accumulation of salt in the surface soil seal coat are the modified acrylic acid emulsion with infiltration film forming characteristics;
The modified acrylic acid emulsion is:The emulsion that the stoste of modified acrylic acid emulsion is formed after diluting with fresh water;
The stoste of the modified acrylic acid emulsion is less than or equal to 1 with the mass ratio of fresh water:3.
11. seawater coral aggregate concrete building blocks according to claim 10, it is characterised in that:
The stoste of the modified acrylic acid emulsion is 1 with the mass ratio of fresh water:1.
12. seawater coral aggregate concrete building blocks according to claim 9, it is characterised in that:
The seawater coral decorative mortar, be the anti-accumulation of salt in the surface soil seawater coral aggregate concrete building block raw material in reject coral Seawater coral mortar after coral stone coarse aggregate, prepared by surplus stock;
The particle diameter of the corallite coarse aggregate is 5-13mm.
13. seawater coral aggregate concrete building blocks according to claim 1, it is characterised in that:
The strength grade of the portland cement is PO42.5.
14. seawater coral aggregate concrete building blocks according to claim 1, it is characterised in that:
The seawater coral aggregate concrete building block of the anti-accumulation of salt in the surface soil is solid block or building-block;
When the seawater coral aggregate concrete building block of the anti-accumulation of salt in the surface soil is building-block, the hollow rate of the building-block is 30%~50%.
CN201610973322.3A 2016-11-04 2016-11-04 Anti-efflorescence sea water coral aggregate concrete block Pending CN106630819A (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108178572A (en) * 2017-12-19 2018-06-19 中冶建筑研究总院有限公司 A kind of preparation method of coral reef haydite
CN108455889A (en) * 2018-02-09 2018-08-28 济南大学 The coral aggregate reinforcing slurries of chlorion can be cured in a kind of phosphor aluminate cement base
CN109883791A (en) * 2019-04-01 2019-06-14 湘潭大学 A kind of calcareous sand triaxial test sample is rapidly saturated method
CN110272231A (en) * 2019-07-18 2019-09-24 北京生态家园科技集团有限公司 A kind of quick-dry type decorative mortar and preparation method thereof

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CN203334568U (en) * 2013-04-23 2013-12-11 棕榈园林股份有限公司 Saltpetering prevention structure of garden veneer pasted block
CN105936593A (en) * 2016-04-28 2016-09-14 中冶建筑研究总院有限公司 Seawater coral aggregate concrete

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CN203334568U (en) * 2013-04-23 2013-12-11 棕榈园林股份有限公司 Saltpetering prevention structure of garden veneer pasted block
CN105936593A (en) * 2016-04-28 2016-09-14 中冶建筑研究总院有限公司 Seawater coral aggregate concrete

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108178572A (en) * 2017-12-19 2018-06-19 中冶建筑研究总院有限公司 A kind of preparation method of coral reef haydite
CN108178572B (en) * 2017-12-19 2021-03-19 中冶建筑研究总院有限公司 Preparation method of coral reef ceramsite
CN108455889A (en) * 2018-02-09 2018-08-28 济南大学 The coral aggregate reinforcing slurries of chlorion can be cured in a kind of phosphor aluminate cement base
CN108455889B (en) * 2018-02-09 2020-12-25 济南大学 Phosphoaluminate cement-based coral aggregate reinforced slurry capable of curing chloride ions
CN109883791A (en) * 2019-04-01 2019-06-14 湘潭大学 A kind of calcareous sand triaxial test sample is rapidly saturated method
CN110272231A (en) * 2019-07-18 2019-09-24 北京生态家园科技集团有限公司 A kind of quick-dry type decorative mortar and preparation method thereof

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