CN102199023A - Building mortar prepared by using desert Aeolian sand and preparation method thereof - Google Patents
Building mortar prepared by using desert Aeolian sand and preparation method thereof Download PDFInfo
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- CN102199023A CN102199023A CN2011100843225A CN201110084322A CN102199023A CN 102199023 A CN102199023 A CN 102199023A CN 2011100843225 A CN2011100843225 A CN 2011100843225A CN 201110084322 A CN201110084322 A CN 201110084322A CN 102199023 A CN102199023 A CN 102199023A
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
The invention relates to the technical field of building mortar engineering, in particular to building mortar prepared by using desert Aeolian sand and a preparation method thereof. The building mortar prepared by using the desert Aeolian sand is prepared by using 290kg of Aeolian sand, 72kg of cement, 20kg of fly ash, 1.4kg of water reducing agents, 0.3kg of air entraining agent, 8kg of expanding agents, 62kg of water and 1L of soluble glass through the steps of material selection, blending of dry materials, blending of liquids and preparation of mortar, wherein the soluble glass is measured in volume, and the unit is liter; and the other materials are measured in weight, and the unit is kilogram. The building mortar prepared by using the desert Aeolian sand and the preparation method thereof have the advantages that the cost performance is higher than that of common river sand; and long-distance transportation is avoided, and thus the construction period is shortened greatly. The invention has great environmental protection significance and important theoretical and practical significance.
Description
Technical field
The present invention relates to the building mortar field of engineering technology, is a kind of building mortar and collocation method that utilizes desert aeolian sand preparation.
Background technology
Natural sand is the non-renewable resource that forms in very long geological age.Along with the expansion of construction scale, natural high-quality sand resource is shortage day by day.The many places of China have occurred drawing the river in violation of rules and regulations, have got the sand phenomenon with ruining at present, jeopardize river course safety, destroy environment.
Along with the Petroleum Engineering Construction dynamics of investment of desert area is strengthening, engineering construction need be with starting material such as a large amount of sand, stones, and engineering is with the buying of sand with transport that often cost is high.The desert aeolian sand belongs to fine sand, and China does not still have the using standard standard of its system at present, in desert area it is directly used with sand as engineering also to lack scientific basis.
Therefore, in line with the principle of gathering materials on the spot, making the best use of everything, utilize the physics-chem characteristic of aeolian sand, by adjusting matching principle and the approach that mixes admixture, exploration utilizes the desert aeolian sand to replace common engineering sand, makes to meet the aeolian sand mortar engineering construction needs, close with mixed mortar gongwu mechanical property with ordinary mortar and have important theoretical and realistic meaning undoubtedly.
At present, prepare building mortar as fine aggregate, also do not have relevant research report, more do not form a cover proven technique standard and instruct about adopting the desert aeolian sand.
Summary of the invention
The objective of the invention is: technical problem to be solved by this invention is at above-mentioned blank of the prior art, and a kind of method of utilizing desert aeolian sand preparation building mortar is provided.
Technical scheme of the present invention is: relate to a kind of building mortar that utilizes desert aeolian sand preparation, it is characterized in that: this building mortar of desert aeolian sand preparation that utilizes is configured according to following ratio:
Aeolian sand 290: cement 72: flyash 20: water reducer 1.4: air entrapment agent 0.3: swelling agent 8: water 62: water glass 1;
Wherein water glass cubing, unit is for rising, and all the other each batchings are all measured by weight, and unit is a kilogram.
A kind of collocation method that utilizes the building mortar of desert aeolian sand preparation is characterized in that: this utilizes the collocation method of the building mortar of desert aeolian sand preparation to carry out according to following steps:
In step s1, carry out choosing of aeolian sand: choose the processing of sieving of desert aeolian sand, remove the foreign material beyond the aeolian accumulation gravel;
In step s2, carry out choosing of cement: select composite Portland cement for use;
In step s3, carry out choosing of flyash extra material: the flyash of selecting for use is the secondary ash;
In step s4, carry out the selection of adulterant: prepare masonry mortar with flyash as adulterant, choose with step s3 in identical flyash;
In step s5, carry out the selection of compound additive: compound additive comprises water reducer, air entrapment agent and water glass;
In step s6, carry out the selection of swelling agent: select UEA swelling agent (being called for short the U type), U type swelling agent is a sulplo-aluminate class swelling agent;
In step s7, carry out the mix of siccative: aeolian sand, cement, flyash and the swelling agent selected are fully admixed evenly, and aeolian sand, cement, flyash and swelling agent belong to siccative;
In step s8, carry out the configuration of mixed solution: be filled with water with container A, in water, add water glass, water reducer, and stir; Contain the water adding air entrapment agent that temperature is not less than 60 ° with container B, and fully stirring is fully dissolved air entrapment agent; Then with the liquid mixing in container A and the container B, and stir;
In step s9, mortar mix:, mix fully and stir with the siccative and the initiate water of mix among the liquid of final configuration among the step s8 and the step s7, left standstill then 3 to 5 minutes, once fully stir again, admixture is played one's part to the full, obtain mortar;
The mortar formulated according to above-mentioned steps promptly can be used for the building mortar engineering.
The ratio of described water is a minimum value, promptly is no less than the ratio of water 62.
Among the described step s2, general cement 32.5 low-strength cements of choosing local production of cement.
In the described step 5, water reducer is a polycarboxylate dehydragent, and the molecule of polycarboxylate dehydragent forms " pectination " or " dendroid " structure by " molecular designing " is artificial, and is connected to many side chains that certain-length and rigidity are arranged on molecular backbone chain; Air entrapment agent is a Sodium dodecylbenzene sulfonate, and molecular formula is C
18H
29NaO
3S; Water glass is Na
2OnSiO
2, n=2.4, the concentration of water glass is 50%.
In the described step 8, the water yield in container A, the container B can fully be dissolved compound additive.
Among the described step s9, during the mortar mix, the new water yield of adding is determined according to thick, rare degree of construction needs mortar.
Characteristics of the present invention are:
(1) cost performance is higher than common river sand
Adopt cost-benefit recently to analyze and drop into and the relativity of being benefited, can estimate pros and cons and economical effectiveness that desert sand is mixed the masonry mortar of system more all sidedly.Cost performance refers to the performance that can reach and the economic ratio that drops into.With the quantizating index of cost performance as the cost-benefit ratio.
CPI＝(∏Xi)/M
CPI-cost performance, the material property product of the unit's of being defined as Renminbi (unit);
Every performance index of Xi-masonry mortar.Three indexs of workability, intensity, shrinkage value after the employing standardization;
The cost of M-every cubic metre masonry mortar (unit/m3).
The common river sand mortar performance index that satisfies the engineering practice requirement sees Table 1 and table 2, and its cost calculation result sees Table 3 and table 4; The present invention is that the mortar cost calculation result of fine aggregate preparation sees Table 5 with hair Wu Su desert aeolian sand, according to aforesaid method, the performance index and the economic target of common river sand mortar is defined as 1, according to this to aeolian sand mortar (Q
5) performance index and economic target carry out standardization, the Q that calculates according to aforesaid method
5The cost performance of mortar is listed table 6 and table 7 in.By calculation result as seen, though the two cost is very nearly the same, with aeolian sand as the cost performance of the mortar of fine aggregate preparation apparently higher than the mortar of common river sand as the fine aggregate preparation.
The common river sand mortar performance of table 1 index proportioning 1
The common river sand mortar performance of table 2 index proportioning 2
The common river sand mortar of table 3 construction cost per square meter reckoner (proportioning 1)
The common river sand mortar of table 4 construction cost per square meter reckoner (proportioning 2)
Table 5 desert aeolian sand is that (illustrate: desert sand, water do not count Costco Wholesale for the mortar construction cost per square meter reckoner of fine aggregate preparation.Q
5Proportioning is mixed and is made mortar volume and be about 1.05m
3, therefore the Costco Wholesale of actual folk prescription mortar is 215.87 yuan.）
Table 6:Q
5Aeolian sand mortar cost performance calculation result (is reference with proportioning 1 ordinary mortar)
Table 7:Q
5Aeolian sand mortar cost performance calculation result (is reference with proportioning 2 ordinary mortars) (2) is without long-distance transportation, greatly the reduction of erection time
Desert area be seen everywhere use not to the utmost, inexhaustible aeolian sand, its spreading depth is the tens of rice of following Chang Keda from the face of land.Therefore utilize a hair Wu Su desert aeolian sand to prepare mortar, can gather materials on the spot, thereby avoid transporting for long-distance river sand and cause the plenty of time waste, and then shorten the construction period greatly as fine aggregate.
(3) significant to environment protection
Natural river sand is the non-renewable resource that forms in very long geological age.Along with the expansion of construction scale, natural high-quality sand resource is shortage day by day.Utilize hair Wu Su desert aeolian sand to replace common river sand preparation mortar; not only can the reduction of erection time; and can avoid largely because of in violation of rules and regulations drawing the river, getting phenomenon such as sand with ruining; thereby in protection river course safety, the protection environment is unlikely, and aspect such as wreck has important theoretical and realistic meaning.
Description of drawings
The present invention is further illustrated below in conjunction with embodiment:
Fig. 1 is the schema that embodiment utilizes the method for desert aeolian sand preparation building mortar;
Fig. 2 is the cement technology index;
Fig. 3 is the flyash technical indicator;
Fig. 4 is configuration volume 1.05m
3The proportioning illustration of mortar.
Embodiment
Embodiment 1
With hair Wu Su desert aeolian sand is example, selects for use a mao Wu Su desert aeolian sand to carry out the building mortar configuration.
This building mortar of desert aeolian sand preparation that utilizes is configured according to following ratio:
Aeolian sand 290: cement 72: flyash 20: water reducer 1.4: air entrapment agent 0.3: swelling agent 8: water 62: water glass 1;
Wherein water glass cubing, unit is for rising, and all the other each batchings are all measured by weight, and unit is a kilogram.
Wherein the ratio of water is a minimum value, and promptly institute's water requirement is no less than the ratio of water 62.
As shown in Figure 1, this utilizes the collocation method of the building mortar of desert aeolian sand preparation to carry out according to following steps:
In step s1, carry out choosing of aeolian sand: sieve by choosing a mao Wu Su desert aeolian sand, remove aeolian accumulation gravel foreign material in addition; The common processing of sieving is a purpose to remove foreign material, and the order number is not done requirement.
In step s2, carry out choosing of cement: as shown in Figure 2, the P.C 32.5 general composite Portland cements of selecting for use Qinling Mountains cement company limited to produce, cement normal consistency water consumption is 27%, stability is qualified, and ultimate compression strength 3d is 21.1MPa, and ultimate compression strength 28d is 36.8MPa, folding strength 3d is 3.70MPa, and folding strength 28d is 6.10MPa.In line with the purpose of gathering materials on the spot and saving cost, select the local low-strength cement of producing, lower strength of cement large usage quantity in mortar makes in the mortar slurry more relatively, thereby the mortar flowability can increase, and water-retentivity can strengthen.
In step s3, carry out choosing of flyash extra material: as shown in Figure 3, select Hu County, Shaanxi second heat power plant's flyash for use, belong to the secondary ash, fineness (0.045mm screen over-size) is 18%, and water demand ratio is 94%, and loss on ignition is 13%, contains SO
3Be 1.1%.
In step s4, carry out the selection of adulterant: prepare masonry mortar with flyash as adulterant, coal ash is the fine particle with spherical shapes, and its microstate is a vitreum, and main component is SiO
2, Al
2O
3, Fe
2O
3
The masonry mortar of construction work adopts sand-cement slurry or cement lime mortar mostly, with lime putty as adulterant.But find lime putty weight instability in the actual engineering, cause masonry mortar intensity low, easily produce the crack, and the price of lime powder is than flyash height, the collateral security weight and the aspect that reduces cost are considered, abandon lime putty, prepare masonry mortar with flyash as adulterant.In sand-cement slurry with the cement of weight such as coal ash instead, volume approximately increases by 30% with respect to cement, increased the volume ratio of slurry and sand, a large amount of slurry fillings is in the intergranular space of sand, parcel and lubricated sand particle, reduced the friction resistance between sand grains, the flowability of mortar mixture improves, and simultaneously water-retentivity is also had some improvement.Adding coal ash is to the influence of masonry mortar intensity, depend primarily on the potential pozzolanic activity effect of flyash, this active function refers to that mainly the calcium hydroxide reaction in active silica, activated alumina and the sand-cement slurry of vitreous state in the flyash generates hydraulicity gum materials such as hydrated calcium silicate, drated calcium aluminate.The masonry mortar that mixes flyash is along with increase the length of time, and flyash activity is brought into play gradually, and the physical and mechanical property in sclerosis mortar later stage can reliably be guaranteed.
Cement, flyash mixing masonry mortar can satisfy the construction and the code requirement of masonry mortar, can save large quantities of lime for construction work again, be beneficial to and reduce cost, flyash meets the national environmental protection policy as trade waste in the application of mortar, economic benefit and obvious social benefit.
In step s5, carry out the selection of compound additive: compound additive comprises water reducer, air entrapment agent and water glass; Because aeolian sand is thinner, the mortar water requirement is too big, the compound additive that the present invention's selection is made up of water reducer, air entrapment agent, water glass, and the water consumption of mortar obviously descends behind the admixture, under the essentially identical situation of mortar mixture denseness, its water consumption reduces about 15%.
Water reducer is a polycarboxylate dehydragent, is produced by the triumphant enlightening building materials in Shanxi company limited, and specifications and models are KDSP-1.The molecule of polycarboxylate dehydragent forms " pectination " or " dendroid " structure by " molecular designing " is artificial, and is connected to many side chains that certain-length and rigidity are arranged on molecular backbone chain.The diminishing dissemination mechanism of polycarboxylic acid series high efficiency water reducing agent is to serve as the main result who has several effect mutual superposition such as hydration shell lubrication, wetting action concurrently with electrostatic repulsion, sterically hindered (claiming stereoeffect, steric repulsion effect again), complexing action, discharge free-water by destroying flucculation structure, and the cement particle is disperseed.Poly carboxylic acid series water reducer forms absorption shape on cement granules essential substance generally is anion surfactant with disperseing water reducer, contain a lot of active groups in its molecular structure, can be adsorbed on cement granules and the hydrate thereof, formation has certain thickness adsorption layer and certain absorption shape, thereby has changed the physico-chemical property of solid-liquid interface and the reactive force between the particle greatly.Sulfonic group in the polycarboxylate high performance water-reducing agent molecule (SO3H) and carboxyl (COOH) provide adsorption site and electrostatic repulsion, make the water reducer molecular orientation be adsorbed on cement particle surface, the segment polarity group points to liquid phase, the ionizing event of hydrophilic radical makes on the cement granules table filled band and to form electrostatic double layer by electrically identical electric charge.Close mutually when cement granules, when overlapped, just produce electrostatic repulsion between the cement granules between the electricity layer, the cement granules flucculation structure is disintegrated, and particle disperses mutually, discharges the free water that is wrapped in the floc sedimentation, thereby increases the flowability of mixture effectively.Contain a large amount of polar groups in the polycarboxylate water-reducer molecule, (COOH), (OH), (SO3H), ehter bond (R-O-R ') and amino are (NH2) etc. for sulfonic group for hydroxyl as carboxyl, these polar groups all have stronger hydrophilic interaction, can associate with water molecules and form hydrogen bond, improve the wettability of cement particle surface, make water saturates in intergranular narrower and small pore.The water reducer molecular adsorption is behind cement particle surface, form the solvent hydration shell that one deck has certain physical strength at cement particle surface, the formation of hydration shell can destroy the flucculation structure of cement granules, and cement granules is fully disperseed, and produces the effect that hinders cohesion.
Air entrapment agent is a Sodium dodecylbenzene sulfonate, and molecular formula is C
18H
29NaO
3S is produced by Tianjin red rock chemical reagent factory; After adding sodium laurylsulfonate in the mortar, because the effect of tensio-active agent, the surface tension and the surface energy of water have been reduced, when stirring, be easy to generate bubble at mortar, simultaneously tensio-active agent is adsorbed in bubble surface in the bubble surface enrichment and does and align, form the monomolecular adsorption film, make liquid film have physical strength and be difficult for breaking.The effect of sodium laurylsulfonate, its small CAB has played the effect of spot contact bearing in the mortar mixture, reduced the friction resistance of mortar mixture flow process medium sand intergranular, the flowability of mortar mixture is improved greatly, and water-retentivity is good, constructing operation is convenient.
Water glass is Na
2OnSiO
2, n=2.4, its concentration is 50%; The thickness state that water glass solution self is had can make the water-retentivity of mortar mixture improve, and excreting water phenomenon descends to some extent.Compare methylcellulose gum, water glass generally can not reduce the ultimate compression strength of mortar.There is document to show between solid phase fly ash grain and the liquid phase water glass solid-liquid two phase reaction can take place.After flyash and water glass solution mixing, unzipping takes place and forms oligomeric [SiO in aluminosilicate glass wherein under the effect of exciting agent
4] and [AlO
4].[the SiO of oligomeric attitude subsequently
4] and [AlO
4] produce polycondensation and formed [Mx (AlO
2) y (SiO
2) znMOHmH
2O] colloid, this colloid is very fast at the fly ash grain surface precipitation.And responseless fly ash grain bondd, finally form fly ash based mineral polymer, have certain mechanical strength level.
In step s6, carry out the selection of swelling agent: select UEA swelling agent (being called for short the U type), U type swelling agent is a sulplo-aluminate class swelling agent.At 3.25 cement of selecting for use, to select here to produce by the special engineered limited liability company of Xi'an cumulative, specifications and models are the low alkali U type of JN1229-B, volume is 10%; Each component of UEA swelling agent all has ettringite to generate in initial stage, the middle and later periods of aquation, can make the development of strength of cement and expansion coordinate, and makes the phase of expansion have the compensate for shrinkage ability in longer for some time.
As shown in Figure 4, be 1.05m with the configuration volume
3Mortar is an example, takes the data of following each raw material.
In step s7, carry out the mix of siccative: aeolian sand 1450kg, the cement 360kg, flyash 100kg and the swelling agent 40kg that select are fully admixed evenly, and aeolian sand, cement, flyash and swelling agent belong to siccative.
In step s8, carry out the configuration of mixed solution:, in water, add water glass 5L, water reducer 7kg, and stir with the container A 1.5L that is filled with water; Contain the water 0.5L adding air entrapment agent 150g that temperature is not less than 60 ° with container B, and fully stirring is fully dissolved air entrapment agent; Then with the liquid mixing in container A and the container B, and stir.
The water yield in container A, the container B can fully be dissolved compound additive.
In step s9, mortar mix:, mix fully and stir with the siccative and the initiate water of mix among the liquid of final configuration among the step s8 and the step s7, left standstill then 3 to 5 minutes, once fully stir again, admixture is played one's part to the full, obtain mortar.The new water yield that adds is determined according to thick, rare degree of construction needs mortar.
The mortar formulated according to above-mentioned steps promptly can be used for the building mortar engineering.
Embodiment 2: as shown in Figure 1, 2, ratio, the flow process of configuration mortar are identical with embodiment 1 among the embodiment 2, different is: in line with gathering materials on the spot and cost-effective purpose, select local desert aeolian sand and the local general cement of producing, and, can make suitable building mortar for building according to this flow process and ratio according to the selected suitable additive of cement use.
Simultaneously, natural river sand is the non-renewable resource that forms in very long geological age.Along with the expansion of construction scale, natural high-quality sand resource is shortage day by day.Utilize the desert aeolian sand to replace common river sand preparation mortar; not only can the reduction of erection time; and can avoid largely because of in violation of rules and regulations drawing the river, getting phenomenon such as sand with ruining; thereby in protection river course safety; the unlikely aspect such as wreck of protection environment has important theoretical and realistic meaning, simultaneously in line with the principle of gathering materials on the spot, replaces common river sand to prepare mortar with the desert aeolian sand; can reduce transportation cost, reduce engineering cost.
Claims (7)
1. building mortar that utilizes the preparation of desert aeolian sand, it is characterized in that: this building mortar of desert aeolian sand preparation that utilizes is configured according to following ratio:
Aeolian sand 290: cement 72: flyash 20: water reducer 1.4: air entrapment agent 0.3: swelling agent 8: water 62: water glass 1;
Wherein water glass cubing, unit is for rising, and all the other each batchings are all measured by weight, and unit is a kilogram.
2. collocation method that utilizes the building mortar of desert aeolian sand preparation, it is characterized in that: this utilizes the collocation method of the building mortar of desert aeolian sand preparation to carry out according to following steps:
In step s1, carry out choosing of aeolian sand: choose the processing of sieving of desert aeolian sand, remove the foreign material beyond the aeolian accumulation gravel;
In step s2, carry out choosing of cement: select composite Portland cement for use;
In step s3, carry out choosing of flyash extra material: the flyash of selecting for use is the secondary ash;
In step s4, carry out the selection of adulterant: prepare masonry mortar with flyash as adulterant, choose with step s3 in identical flyash;
In step s5, carry out the selection of compound additive: compound additive comprises water reducer, air entrapment agent and water glass;
In step s6, carry out the selection of swelling agent: select UEA swelling agent (being called for short the U type), U type swelling agent is a sulplo-aluminate class swelling agent;
In step s7, carry out the mix of siccative: aeolian sand, cement, flyash and the swelling agent selected are fully admixed evenly, and aeolian sand, cement, flyash and swelling agent belong to siccative;
In step s8, carry out the configuration of mixed solution: be filled with water with container A, in water, add water glass, water reducer, and stir; Contain the water adding air entrapment agent that temperature is not less than 60 ° with container B, and fully stirring is fully dissolved air entrapment agent; Then with the liquid mixing in container A and the container B, and stir;
In step s9, mortar mix:, mix fully and stir with the siccative and the initiate water of mix among the liquid of final configuration among the step s8 and the step s7, left standstill then 3 to 5 minutes, once fully stir again, admixture is played one's part to the full, obtain mortar;
The mortar formulated according to above-mentioned steps promptly can be used for the building mortar engineering.
3. according to a kind of building mortar that utilizes desert aeolian sand preparation described in the claim 1, it is characterized in that: the ratio of described water is a minimum value, promptly is no less than the ratio of water 62.
4. according to a kind of collocation method that utilizes the building mortar of desert aeolian sand preparation described in the claim 2, it is characterized in that: among the described step s2, the general cement of choosing local production of cement promptly adopts 32.5 low-strength cements.
5. according to a kind of collocation method that utilizes the building mortar of desert aeolian sand preparation described in the claim 2, it is characterized in that: in the described step 5, water reducer is a polycarboxylate dehydragent, the molecule of polycarboxylate dehydragent forms " pectination " or " dendroid " structure by " molecular designing " is artificial, and is connected to many side chains that certain-length and rigidity are arranged on molecular backbone chain; Air entrapment agent is a Sodium dodecylbenzene sulfonate, and molecular formula is C
18H
29NaO
3S; Water glass is Na
2OnSiO
2, n=2.4, the concentration of water glass is 50%.
6. according to a kind of collocation method that utilizes the building mortar of desert aeolian sand preparation described in the claim 2, it is characterized in that: in the described step 8, the water yield in container A, the container B can fully be dissolved compound additive.
7. according to a kind of collocation method that utilizes the building mortar of desert aeolian sand preparation described in the claim 2, it is characterized in that: among the described step s9, during the mortar mix, add the new water yield and determine according to thick, rare degree of construction needs mortar.
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| CN104163651A (en) * | 2014-07-18 | 2014-11-26 | 景泰富海阳光建材有限责任公司 | Autoclaved aeolian sand aerated concrete building block and wallboard |
| CN105218023A (en) * | 2015-09-24 | 2016-01-06 | 东南大学 | A kind of drift-sand foam material and preparation method |
| CN105837073A (en) * | 2016-03-25 | 2016-08-10 | 南京理工大学 | Eolian sand permeation reduction agent, preparation method and application thereof |
| CN108164197A (en) * | 2018-02-27 | 2018-06-15 | 内蒙古自治区水利水电勘测设计院 | A kind of high-strength composite cement aeolian accumulation mortar |
| CN108358591A (en) * | 2018-02-11 | 2018-08-03 | 中科镁基（北京）科技有限公司 | Building material compositions and preparation method thereof containing drift-sand |
| CN108455964A (en) * | 2018-05-14 | 2018-08-28 | 东南大学 | A kind of environmentally friendly fast repairing material and preparation method thereof |
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| CN112876177A (en) * | 2021-04-07 | 2021-06-01 | 西京学院 | Desert sand epoxy resin composite mortar and preparation method thereof |
| CN116217191A (en) * | 2023-03-22 | 2023-06-06 | 西京学院 | Cold region desert sand composite alkali-activated anti-freezing mortar and preparation and construction methods thereof |
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