The content of the invention
To solve problems of the prior art, the present invention proposes a kind of new gravity flowing levelling mortar and its production technology,It can realize that efficiency of construction is high, intensity is high, not ftracture, it is applied widely, with low cost；And energy resource consumption can be reduced,Reduce environmental pollution.
To achieve the above object, the present invention proposes a kind of new gravity flowing levelling mortar, and each component percentage by weight is as follows：
Modified cement 3-60%, modified semi-hydrated gypsum 10-66%, flyash 0.1-8%, cement modifier 0.07-1.5%, gypsum changesProperty agent 0.05-1.5%, adjustable solidification agent 0.04-0.8%, resist swollen dose of 0.01-0.1%, stabilizer 0.01-0.2%, defoamer 0.01-0.2%, toner 0.2-0.4%, slip agent 0.05-0.13%, gather materials 30-86%.
The modified semi-hydrated gypsum is the half water natural gypsum, desulfurated plaster, ardealite, fluorgypsum, bunt gypsum or lemon stoneOne or more in cream.
The cement modifier includes：Water reducer 80-90%, 200 mesh Paris white 10-20%.
The gypsum modifying agent includes：Gypsum base water reducer 64-96%, silica flour 3-20%, melamine 0.9-10%, sulfuric acidMagnesium 0.1-6%.
The adjustable solidification agent is anhydrous gypsum or phosphate；Anti- swollen dose is polycarboxylate or lignosulfonates；The stabilizationAgent is polyacrylate, cellulose, natural rubber or rubber powder；The slip agent is gelatine or non-ionic surfactant；It is describedGather materials for quartz sand, Machine-made Sand, pottery sand or river sand.
A kind of production technology of new gravity flowing levelling mortar, comprises the following steps：
1）The modified cement is that Portland cement or alumina cement are added after cement modifier in proportion, in 10-70 degreeAt a temperature of be sufficiently stirred for, after aged 90 minutes it is closed storage it is standby；The modified semi-hydrated gypsum is half water high strength gypsum or builtBuild gypsum to add in proportion after gypsum modifying agent, be sufficiently stirred at a temperature of 1-40 degree, then be aged after 120 minutes it is closed storage it is standbyWith；
2）By above-mentioned modified cement and modified semi-hydrated gypsum and flyash in proportion, it is sufficiently stirred for, is aged at a temperature of 1-40 degreeClosed storage is standby after reacting 2 days；
3）By the material of above-mentioned preparation, adjustable solidification agent is proportionally added into order, anti-swollen dose, stabilizer, slip agent is in 0-30 degree temperatureIt is sufficiently stirred under degree, the closed standby obtained A materials of storage after being aged 3 days；
4）The A materials that upper step is made are mixed to prepare mortar in proportion with gathering materials again.
It is preferred that, in the 4th step, A materials account for the 50-70% of this gravity flowing levelling mortar material gross mass, gather materials and account for this gravity flowThe 30-50% of flat mortar gross mass；Gather materials quartz sand or Machine-made Sand including 0.05-0.2mm mesh numbers accounts for the 50- of aggregate qualityThe quartz sand or Machine-made Sand of 70%, 0.1-0.3mm mesh number account for the 30-50% of aggregate quality；
Materials A is quantitatively delivered continuously to mixer with spiral reamer, while standby gathering materials quantitatively is delivered continuously into stirringMachine；It is sufficiently stirred for 3-5 minutes, passes through metering packing device package；Storage.
It is preferred that, in the 4th step, A materials account for the 50-70% of this gravity flowing levelling mortar material gross mass, gather materials and account for this gravity flowThe 30-50% of flat mortar gross mass；
The quartz sand or Machine-made Sand gathered materials including 0.05-0.2mm mesh numbers accounts for the 50-70% of aggregate quality, 0.1-0.3mm meshSeveral quartz sand or Machine-made Sand accounts for the 30-50% of aggregate quality；
Materials A is quantitatively delivered continuously to mixer with spiral reamer, while standby gathering materials quantitatively is delivered continuously into stirringMachine；It is sufficiently stirred for 3-5 minutes, passes through metering packing device package；Storage.
It is preferred that, in the 4th step, A materials account for the 60-80% of this gravity flowing levelling mortar material gross mass, gather materials and account for this gravity flowThe 20-40% of flat mortar gross mass；
It is described gather materials account for the 100% of aggregate quality for the pottery sand of 0.1-3mm mesh numbers.
Beneficial effect：
After this new gravity flowing levelling mortar construction, early strength is high, and 24h resistance to compressions are up to 20MPa, and the anti-foldings of 24h are current up to 4MPaInternational gravity flowing levelling mortar highest index.The good fluidity of this new gravity flowing levelling mortar, 30min frees of losses, fluidity reaches150mm, is current domestic highest index.Imported product can be replaced, is filled the domestic gaps.Strong, the stretch-proof with substrate bonding force1.2MPa is reached, more than national standard.
This new gravity flowing levelling mortar is applied widely, is that gravity flowing levelling mortar is started available for indoor and outdoor varying environmentNew application field；The problem that floor heating backfill cement mortar can not be levelling can be solved, it is with low cost to replace light water silt particleSlurry.This mortar is "dead", CO in production process2Discharge capacity is low, is environmental protection and energy saving mortar；
This mortar utilizes power plant waste desulfurated plaster, flyash, phosphate fertilizer plant's waste ardealite, Citric Acid Plant discarded object lemonGypsum, salt field waste bunt gypsum, solve power plant, phosphate fertilizer plant, Citric Acid Plant, sugar refinery, the recycling of saltern solid wasteUtilize.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, below in conjunction with and embodiment, to this hairIt is bright to be further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and withoutIt is of the invention in limiting.
With reference to embodiment, the invention will be further described：
First, preferably, A materials account for the 50-70% of this gravity flowing levelling mortar material gross mass, gather materials and account for this gravity flowing levelling mortar material gross mass30-50%；Gather materials quartz sand or Machine-made Sand including 0.05-0.2mm mesh numbers accounts for the 50-70%, 0.1-0.3mm of aggregate qualityThe quartz sand or Machine-made Sand 30-50% of mesh number；Materials A is quantitatively delivered continuously to mixer with spiral reamer, while will be standbyGather materials and be quantitatively delivered continuously to mixer；It is sufficiently stirred for 3-5 minutes, passes through metering packing device package；Storage.Mortar when usingIt is 18-21% with water ratio, is sufficiently stirred for 2-3 minutes.It can be used, its construction method and cement base and gypsum based self-levelingEqually.This proportioning, which is applied to heavy ground, needs the ground of high abrasion degree, such as industrial premises, garage parking（）, Aircraft Hangar etc.Situation.
This product feature：
1）Good leveling property is produced, 30min frees of losses fluidity can do more than 2mm thickness up to 150mm, thickness range.
2）Tensile strength height, tensile strength can thoroughly solve the problems, such as the hollowing that ftractures up to 1.3MPa.
3）Compression strength is high, 24h can reach 20MPa, can reach within 7 days 45MPa, anti-folding 24h is reachable more than 50MPa within 28 daysTo 4MPa, 7MPa is can reach within 7 days, 28 days more than 12MPa.Fully achieve load-bearing and wheel rolling is required.
4）Setting time is fast, and 24h completely can be with other operations on ground.Substantially increase efficiency of construction.
5）The severe construction environments such as outdoor can be used.Without maintenance.
6）PH value is 10, low to various material corrosive properties.
2nd, preferably, in the 4th step, A materials account for the 50-70% of this gravity flowing levelling mortar material gross mass, gather materials and account for thisThe 30-50% of gravity flowing levelling mortar material gross mass；
The quartz sand or Machine-made Sand gathered materials including 0.05-0.2mm mesh numbers accounts for the 50-70% of aggregate quality, 0.1-0.3mm meshSeveral quartz sand or Machine-made Sand accounts for the 30-50% of aggregate quality；Materials A is quantitatively delivered continuously to mixer with spiral reamer, togetherWhen standby gathering materials quantitatively is delivered continuously to mixer；It is sufficiently stirred for 3-5 minutes, passes through metering packing device package；Storage.Mortar and water ratio are 18-21% when using, and are sufficiently stirred for 2-3 minutes.It can be used, phase construction method and cement base and stoneCream base Self-leveling is the same.This proportioning is applied to the face of light-duty important place face high abrasion degree, such as hospital, high-grade place, medicament compartment.
This product feature：
1）Produce good leveling property, 30min free of losses fluidities up to 140mm,
2）Tensile strength height, tensile strength can thoroughly solve the problems, such as the hollowing that ftractures up to 1.2MPa.
3）Compression strength is high, 24h can reach 17MPa, can reach within 7 days 20MPa, anti-folding 24h is reachable more than 26MPa within 28 daysTo 2.6MPa, 5.5MPa is can reach within 7 days, 28 days more than 10MPa.Fully achieve light load-carrying requirement.
4）Setting time is fast, and 24h completely can be with other operations on ground.Substantially increase efficiency of construction.
5）A variety of colors Horizon can be done, the requirement on different colours ground can be met.
6）PH value is 8.5, low to various material corrosive properties.Product is more environmentally friendly.
3rd, preferably, in the 4th step, A materials account for the 60-80% of this gravity flowing levelling mortar material gross mass, gather materials and account for thisThe 20-40% of gravity flowing levelling mortar material gross mass；
The pottery sand gathered materials for 0.1-3mm mesh numbers accounts for the 100% of collection doses.By the A materials quantitative continuous conveying of spiral reamerTo mixer, while standby gathering materials quantitatively is delivered continuously into mixer.It is sufficiently stirred for 3-5 minutes, is filled by metering packingPackaging is put, is put in storage.Mortar and water ratio are 14-18% when using, and are sufficiently stirred for 2-3 minutes.It can be used, its construction methodWith cement base as gypsum based self-leveling.This proportioning is applied to ground backfill or leveling mortar is raised on ground.
This product feature：
1）Product unit weight is low, and density is 1000 kilograms/cubic metre, well below the weight of cement mortar, reduces monolithic architectureThing weight.
2）Thermal conductivity factor is 0.45W/m.k, with more preferable thermal and insulating performance, and with sound insulation value.It is at presentFace is backfilled or the incomparable regeneration product of leveling mortar is raised on ground.
3）Compression strength is high, 24h can reach 6MPa, can reach within 7 days 16MPa, anti-folding 24h can reach more than 20MPa within 28 days2.5MPa, 28 days more than 20MPa.National cement-based self-leveling is fully achieved to require with gypsum base standard.
4）Setting time is fast, and 24h completely can be with other operations on ground.Substantially increase efficiency of construction.
Example 1：Do 100 square metres of the actual mill floors of 6mm.
Match and be：A materials account for the 70% of this gravity flowing levelling mortar material gross mass, gather materials and account for this gravity flowing levelling mortar material gross mass30%.Gather materials and account for the 20% of this gravity flowing levelling mortar material gross mass, 0.1-0.3mm with river sand for the quartz sand of 0.05-0.2mm mesh numbersThe quartz sand of mesh number accounts for the 10% of this gravity flowing levelling mortar material gross mass with river sand.
A materials are quantitatively delivered continuously to mixer with spiral reamer, while standby quantitative continuous conveying of gathering materials is sentTo mixer.It is sufficiently stirred for 4 minutes, passes through metering packing device package.
Mortar and water ratio are 18.5% when using, and are sufficiently stirred for 3 minutes.Its construction method and cement base and gypsum base are certainlyLevelling is the same.
Site operation situation：
1st, 4 hours can above people operation, and can more than light-duty wheel car.
2nd, 24 hours, 3 ton forklift operations did not found cracking, dusting, hollowing problem.Ground is still being used within 2 years.This implementationExample, which is applied to heavy ground, needs the ground of high abrasion degree, such as industrial premises, garage parking（）, Aircraft Hangar etc..
Example 2：200 square metres are done outside the actual workshops of 15mm.
Match and be：A materials account for the 70% of this gravity flowing levelling mortar material gross mass, gather materials and account for this gravity flowing levelling mortar material gross mass30%.Gather materials and account for the 20% of this gravity flowing levelling mortar material gross mass, 0.1-0.3mm with river sand for the quartz sand of 0.05-0.2mm mesh numbersThe quartz sand of mesh number accounts for the 10% of this gravity flowing levelling mortar material gross mass with river sand.
A materials are sent to mixer with the quantitative continuous conveying of spiral reamer, while by standby quantitative continuous conveying of gathering materialsIt is sent to mixer.It is sufficiently stirred for 4 minutes, passes through metering packing device package.
Mortar and water ratio are 18.5% when using, and are sufficiently stirred for 3 minutes.Its construction method and cement base and gypsum base are certainlyLevelling is the same.
Site operation situation：
1st, 3 hours can above people operation, and can more than light-duty wheel car.
2nd, 24 hours, 10 tons of traction engines passed through, and 40 tons of carrier vehicles do not find that cracking, dusting, hollowing are asked by rolling, after 7 daysTopic.Half a year, ground still used.
Example 3：Do actual 30 square metres of the room floors of office of 5mm.
Match and be：A materials account for the 50% of this gravity flowing levelling mortar material gross mass, gather materials and account for this gravity flowing levelling mortar material gross mass50%.It is that 0.05-0.2mm river sands account for the 40% of this gravity flowing levelling mortar material gross mass to gather materials for granularity, and 0.1-0.3mm river sands account for thisThe 10% of gravity flowing levelling mortar material gross mass.
A materials are sent to mixer with the quantitative continuous conveying of spiral reamer, while by standby quantitative continuous conveying of gathering materialsIt is sent to mixer.It is sufficiently stirred for 4 minutes, passes through metering packing device package.
Mortar and water ratio are 20% when using, and are sufficiently stirred for 3 minutes.Its construction method is flow automatically with cement base with gypsum baseIt is flat the same.
Site operation situation：
1st, 3 hours can above people operation, and can more than light-duty wheel car.
2nd, worked after 24 hours in normal activity, cracking, dusting, hollowing problem are not found.Half a year, ground still used.
Example 4：Do the square meter of 30mm actual grounds 30.
Match and be：A materials account for the 80% of this gravity flowing levelling mortar material gross mass, gather materials（Haydite）Account for this gravity flowing levelling mortar material totalThe 20% of quality.Kilogram/cubic metre of unit weight 1050；It is 1-2mm haydites to gather materials for granularity.
GFD materials are sent to mixer with the quantitative continuous conveying of spiral reamer, while standby gathering materials is quantitatively continuous defeatedIt is sent to mixer.It is sufficiently stirred for 4 minutes, passes through metering packing device package.
Mortar and water ratio are 16% when using, and are sufficiently stirred for 3 minutes.Its construction method is flow automatically with cement base with gypsum baseIt is flat the same.
Site operation situation：
1st, 8 hours can above people operation.
2nd, worked after 24 hours in normal activity, cracking, dusting, hollowing problem are not found.Half a year, ground still used.
New gravity flowing levelling mortar and international top-brand and national cement-based self-leveling, stone that present example 1,2,3,4 is obtainedCream base Self-leveling standard comparing：
It can be seen that from upper table：New gravity flowing levelling mortar apparently higher than cement self-leveling mortar and gypsum based self-leveling mortar,It is more extensive using scope, it can fill the domestic gaps.
Example 5：Do the square meter of 100mm actual grounds 10.
Match and be：A materials account for the 30% of this gravity flowing levelling mortar material gross mass, gather materials and account for this gravity flowing levelling mortar material gross mass70%.Gather materials and account for the 40% of this gravity flowing levelling mortar material gross mass for the Machine-made Sand of 0.05-0.6mm mesh numbers, 0.5-1.2mm mesh numbersMachine-made Sand accounts for the 30% of this gravity flowing levelling mortar material gross mass.
A materials are sent to mixer with the quantitative continuous conveying of spiral reamer, while by standby quantitative continuous conveying of gathering materialsIt is sent to mixer.It is sufficiently stirred for 4 minutes, passes through metering packing device package.
Mortar and water ratio are 14% when using, and are sufficiently stirred for 3 minutes.Its construction method is flow automatically with cement base with gypsum baseIt is flat the same.
Site operation situation：
1st, 6 hours can above people operation, and can above light rail motor tractor.
2nd, worked after 24 hours in normal device installation activity, cracking, dusting, hollowing problem are not found.Half a year ground stillUsing, no cracking shrinkage phenomenon.
3rd, its indices exceedes strength cement-based grouting material materials application specification.
| Initial flowDynamic degree mm | 30 minutesFluiditymm | 24 hoursPressure resistanceSpend MPa | Resist within 28 daysCompressive StrengthMPa | 24 hoursAnti- folding is strongSpend MPa | Resist within 28 daysRoll over intensityMPa | 28 days swollenSwollen rate % | 28 days tablesFace MohsHardness | |
| 360 | 350 | 22.6 | 86.2 | 3.2 | 8.1 | +0.01 | 6 | |
| | | | | | | | |
The new gravity flowing levelling mortar of the present invention：
Power plant waste desulfurated plaster, phosphate fertilizer plant's waste ardealite, Citric Acid Plant discarded object lemon gypsum, salt field waste saltThe semi-hydrated gypsum of gypsum production is modified carries out hybrid reaction formation new material with modified cement and flyash.
Power plant waste desulfurated plaster raw material is that the finishing of power plant stack gas desulfurated plaster byproduct is made, it is possible to resolve desulfurizationGypsum resourceization comprehensively utilizes problem.Properties exceed the technical standard of national regulation, and a kind of product meets two kindsThe standard of product.Gravity flowing levelling mortar is "dead", meets the requirement of environmentally friendly mortar.
It is of the invention with domestic and international cement-based self-leveling mortar compared with gypsum based self-leveling mortar product, by natural half water stoneCream, Industrial Solid pair gypsum, which are modified after being combined with flyash and modified cement, forms new construction material, and realizesProduction levelability is more preferably, tensile strength is higher, compression strength is higher, setting time is adjustable, efficiency of construction is higher, never openSplit, novel product applied widely, with low cost.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present inventionAny modifications, equivalent substitutions and improvements made within refreshing and principle etc., should be included in the scope of the protection.