CN107129317A - A kind of preparation method of hydrophobicity light ceramic - Google Patents

A kind of preparation method of hydrophobicity light ceramic Download PDF

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Publication number
CN107129317A
CN107129317A CN201710337148.8A CN201710337148A CN107129317A CN 107129317 A CN107129317 A CN 107129317A CN 201710337148 A CN201710337148 A CN 201710337148A CN 107129317 A CN107129317 A CN 107129317A
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parts
haydite
microballoon
sludge
biscuit
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封金财
薛洋
杨阳
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Yang Bangyan
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Jiangsu Chang Chang Green Heng Environmental Engineering Co Ltd
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    • C04B38/06—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by burning-out added substances by burning natural expanding materials or by sublimating or melting out added substances
    • C04B38/063—Preparing or treating the raw materials individually or as batches
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    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
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    • C04B33/00—Clay-wares
    • C04B33/02—Preparing or treating the raw materials individually or as batches
    • C04B33/13—Compounding ingredients
    • C04B33/132—Waste materials; Refuse; Residues
    • C04B33/1321—Waste slurries, e.g. harbour sludge, industrial muds
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    • C04B33/00—Clay-wares
    • C04B33/02—Preparing or treating the raw materials individually or as batches
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    • C04B33/135—Combustion residues, e.g. fly ash, incineration waste
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Abstract

The present invention relates to a kind of preparation method of hydrophobicity light ceramic, belong to building material technical field.The sludge of sewage treatment plants second pond is dehydrated and calcined first by the present invention, obtain sludge calcining lime-ash, again with kaolin, bentonite etc. is that raw material is carried out after ball milling, add magnesium sulfate etc. and continue ball milling, obtain mixed fillers, then lime-ash will be calcined with sludge after flyash and cullet ground and mixed, mixed fillers etc. carry out mixing granulation, it is chilled again, after drying, obtain haydite microballoon, then with calcium carbonate, aluminum oxide etc. is raw material, prepare glaze slurries, and hanging processing and drying are carried out to haydite microballoon with glaze slurries, obtain biscuit of ceramics microballoon, finally biscuit of ceramics microballoon is sintered and can obtain high intensity hydrophobicity light ceramic.Haydite intensity prepared by the present invention is high, and water absorption rate is low, while having the characteristic of lightweight concurrently.

Description

A kind of preparation method of hydrophobicity light ceramic
Technical field
The present invention relates to a kind of preparation method of hydrophobicity light ceramic, belong to building material technical field.
Background technology
Haydite, is exactly the particle of ceramic as its name suggests.The external appearance characteristic of haydite is largely rounded or oval-shaped ball, But it is not circular or oval-shaped ball to have some imitative rubble haydites yet, and in irregular rubble shape.The appearance color of haydite is because of institute The raw material of use is different and different with technique.The color for being calcined haydite is mostly kermesinus, ember, also there is some special kinds For lark, grey black, canescence, cinerous etc..The particle diameter of haydite is generally 5~20mm, and maximum particle diameter is 25mm.Haydite It is generally used to replace the rubble and cobble in concrete.Because the raw material for producing haydite is a lot, the kind of haydite is also a lot, thus Color is also just a lot.Lightness is the most important in many premium properties of haydite, is also that it can replace heavy sandstone Main cause.The inner structural features of haydite are in fine and closely woven cellular micropore.These micropores are all case type, rather than communicate-types 's.It is due to that gas is wrapped formed by into shell, and this is the main cause of haydite light weight.
At present, in the preparation technology of existing haydite, mainly with clay, shale, flyash, colliery overburden, loess, dirt Mud etc. is made up of primary raw material.Due to excavating clay, shale, loess, sludge etc., soil erosion, environmental pollution, destruction can be caused The ecological balance, therefore, is not suitable for popularization and application.At present, the waste material and slag of chemical enterprise are using traditional ceramsite preparation process Afterwards, the haydite using effect of production is undesirable, for example, existing use flyash or colliery overburden are the pottery that base stock is manufactured Grain, haydite intensity is poor, and water absorption rate is higher, causes practicality not strong.So, it would be highly desirable to it is higher to find a kind of intensity, water suction The low haydite of rate.
The content of the invention
The technical problems to be solved by the invention：Poor for traditional haydite intensity, water absorption rate is higher, causes haydite There is provided a kind of preparation method of hydrophobicity light ceramic for the problem of practicality is not strong.
To solve technical problem, the technical solution adopted by the present invention is：
（1）Take the sludge of sewage treatment plants second pond, after centrifugal dehydration dry, then at 800~900 DEG C calcining 1~ Pulverized and sieved after 2h, cooling, obtain sludge calcining lime-ash；
（2）Kaolin, bentonite, hydrotalcite 30~50min of ball milling are taken, hydroxymethyl cellulose, magnesium sulfate and stearic acid is added Calcium, continues 1~2h of ball milling, obtains mixed fillers；
（3）It will be mixed after flyash and the sieving of cullet multiple grinding with sludge calcining lime-ash, mixed fillers, deionized water, and Extruding pelletization in comminutor is transferred to, it is 5~10mm to control particle diameter, obtains haydite biscuit；
（4）By haydite biscuit after 20~30s of liquid nitrogen flash freezer 15~20h of vacuum freeze drying, obtain haydite microballoon；
（5）Take calcium carbonate, aluminum oxide, cordierite, potassium feldspar to be added after being pulverized and mixed and 1~2h is stirred in deionized water, add Aluminium dihydrogen phosphate, stirs 1~2h, obtains glaze slurries；
（6）Hanging processing is carried out to haydite microballoon with glaze slurries, it is 0.1~0.2g/cm to control hanging amount2, then by after hanging Haydite microballoon it is dry biscuit of ceramics microballoon；
（7）Discharged after biscuit of ceramics microballoon is calcined, obtain hydrophobicity light ceramic.
Step（2）The parts by weight of described material are 3~5 parts of kaolin, 3~5 parts of bentonites, 1.5~2.0 parts of neatlys Stone, 2~3 parts of hydroxymethyl celluloses, 1~2 part of magnesium sulfate and 2~3 parts of calcium stearates.
Step（3）Described flyash, cullet, sludge calcining lime-ash, mixed fillers, the parts by weight of deionized water are 300~400 parts of flyash, 250~350 parts of cullet, 300~400 parts of sludge calcine lime-ash, 8~10 parts of mixed fillers, 100 ~200 parts of deionized waters.
Step（5）Described calcium carbonate, aluminum oxide, cordierite, potassium feldspar, deionized water, the parts by weight of aluminium dihydrogen phosphate For 20~25 parts of calcium carbonate, 30~35 parts of aluminum oxide, 40~45 parts of cordierites, 4~5 parts of potassium feldspars, 300~400 parts of deionizations Water, 15~16 parts of aluminium dihydrogen phosphates.
Step（7）Described calcination process is specially that under argon atmosphere, 300~400 DEG C, guarantor are warming up to 20 DEG C/min Temperature 15~20min of preheating, is continuously heating to 1300~1500 DEG C, 1~2h of insulation calcining.
The method have the benefit that：The sludge of sewage treatment plants second pond is dehydrated by the present invention first Dry and calcine, obtain sludge calcining lime-ash, then carried out with kaolin, bentonite etc. for raw material after ball milling, add magnesium sulfate etc. Continue ball milling, obtain mixed fillers, then using flyash and cullet as aggregate, sludge calcining lime-ash and mixed fillers are closely knit extremely Aggregate gap, while playing support and adhesion effect, then through quick-frozen, shrinks outer layer micropore, haydite microballoon is made, then with carbonic acid Calcium, aluminum oxide etc. are raw material, prepare glaze slurries, and haydite microballoon are carried out outside hanging processing, sealing with glaze slurries Layer micropore, obtains biscuit of ceramics microballoon, finally biscuit of ceramics microballoon is sintered and can obtain hydrophobicity light ceramic.This hair The haydite of bright preparation uses sludge, cullet the like waste for raw material, turns waste into wealth, reduces production cost, and preparation technology Simply, intensity is high, and water absorption rate is low, while having the characteristic of lightweight concurrently, has broad application prospects.
Embodiment
For ease of understanding the present invention, it is as follows that the present invention enumerates embodiment.Those skilled in the art are it will be clearly understood that the implementation Example is only to aid in understanding the present invention, is not construed as the concrete restriction to the present invention.
The sludge of sewage treatment plants second pond is taken, is fitted into after centrifugal dehydration in drying box, at 105~110 DEG C Drying is placed in tube furnace to constant weight, then by desciccate, 1~2h is calcined at 800~900 DEG C, being cooled to after room temperature to forge Burn product and be fitted into crushing in pulverizer, cross 100 mesh sieves, obtain sludge calcining lime-ash；Weigh 3~5g kaolin, 3~5g bentonites, 1.5~2.0g hydrotalcites, are fitted into ball mill, with 200~300r/min, 30~50min of ball milling, add 2~3g methylols fine Dimension element, 1~2g magnesium sulfate and 2~3g calcium stearates, continue 1~2h of ball milling, obtain mixed fillers；300~400g fine coal is weighed again Ash and 250~350g cullet, are fitted into grinder and grind, and cross 200 mesh sieves, obtain composite powder, and composite powder is loaded into mixed In material machine, 300~400g sludge calcining lime-ash is added, 8~10g mixed fillers, 100~200mL deionized waters, mixing is equal Discharged after even, and be transferred to extruding pelletization in comminutor, it is 5~10mm to control particle diameter, obtains haydite biscuit；Freezed and made pottery with liquid nitrogen spraying Haydite biscuit microballoon is obtained after grain 20~30s of biscuit, coagulation forming, then haydite biscuit microballoon is placed in vacuum freezing drying oven, 15~20h is dried at -20~-10 DEG C, haydite microballoon is obtained；Weigh 20~25g calcium carbonate, 30~35g aluminum oxide, 40~45g Cordierite, 4~5g potassium feldspars are separately added into pulverizer and crushed, and cross 100 mesh sieves, add after the powder after sieving is well mixed Enter in 300~400mL deionized waters, 1~2h is stirred with 500~600r/min, add 15~16g aluminium dihydrogen phosphates, stirring 1 ~2h, obtains glaze slurries；Hanging processing is carried out to haydite microballoon with glaze slurries, it is 0.1~0.2g/cm to control hanging amount2, treat After hanging terminates, the haydite microballoon after hanging is transferred in vacuum drying chamber, control in drying box vacuum be 0.01~ 0.05MPa, 8~10h is dried at 150~160 DEG C, biscuit of ceramics microballoon is obtained；Biscuit of ceramics microballoon is placed in high temperature sintering furnace In, under argon atmosphere, 300~400 DEG C are warming up to 20 DEG C/min, 15~20min of heat-insulation preheating, it is continuously heating to 1300~ 1500 DEG C, insulation 1~2h of calcining is cooled to after room temperature and discharged, obtains hydrophobicity light ceramic.
Example 1
The sludge of sewage treatment plants second pond is taken, is fitted into after centrifugal dehydration in drying box, is dried at 110 DEG C to perseverance Weight, then desciccate is placed in tube furnace, 2h is calcined at 900 DEG C, is cooled to after room temperature and calcined product is loaded into pulverizer It is middle to crush, 100 mesh sieves are crossed, sludge calcining lime-ash is obtained；5g kaolin is weighed, 5g bentonites, 2.0g hydrotalcites load ball mill In, with 300r/min ball milling 50min, 3g hydroxymethyl celluloses, 2g magnesium sulfate and 3g calcium stearates are added, continues ball milling 2h, Obtain mixed fillers；400g flyash and 350g cullet are weighed again, is fitted into grinder and grinds, and are crossed 200 mesh sieves, are obtained composite powder End, and composite powder is fitted into batch mixer, add 400g sludge calcining lime-ash, 10g mixed fillers, 200mL deionizations Water, discharges after being well mixed, and is transferred to extruding pelletization in comminutor, and it is 10mm to control particle diameter, obtains haydite biscuit；Use liquid nitrogen spraying Freeze and haydite biscuit microballoon is obtained after haydite biscuit 30s, coagulation forming, then haydite biscuit microballoon is placed in vacuum freezing drying oven In, 20h is dried at -10 DEG C, haydite microballoon is obtained；25g calcium carbonate is weighed, 35g aluminum oxide, 45g cordierites, 5g potassium feldspars divide It Jia Ru not be crushed in pulverizer, cross 100 mesh sieves, added after the powder after sieving is well mixed in 400mL deionized waters, with 600r/min stirs 2h, adds 16g aluminium dihydrogen phosphates, stirs 2h, obtains glaze slurries；Haydite microballoon is carried out with glaze slurries Hanging is handled, and it is 0.2g/cm to control hanging amount2, after hanging terminates, the haydite microballoon after hanging is transferred to vacuum drying chamber In, it is 0.05MPa to control vacuum in drying box, and 10h is dried at 160 DEG C, biscuit of ceramics microballoon is obtained；By biscuit of ceramics microballoon It is placed in high temperature sintering furnace, under argon atmosphere, is warming up to 400 DEG C with 20 DEG C/min, heat-insulation preheating 20min is continuously heating to 1500 DEG C, insulation calcining 2h is cooled to after room temperature and discharged, obtains hydrophobicity light ceramic.
Example 2
The sludge of sewage treatment plants second pond is taken, is fitted into after centrifugal dehydration in drying box, is dried at 105 DEG C to perseverance Weight, then desciccate is placed in tube furnace, 1h is calcined at 800 DEG C, is cooled to after room temperature and calcined product is loaded into pulverizer It is middle to crush, 100 mesh sieves are crossed, sludge calcining lime-ash is obtained；3g kaolin is weighed, 3g bentonites, 1.5g hydrotalcites load ball mill In, with 200r/min ball milling 30min, 2g hydroxymethyl celluloses, 1g magnesium sulfate and 2g calcium stearates are added, continues ball milling 1h, Obtain mixed fillers；300g flyash and 250g cullet are weighed again, is fitted into grinder and grinds, and are crossed 200 mesh sieves, are obtained composite powder End, and composite powder is fitted into batch mixer, add 300g sludge calcining lime-ash, 8g mixed fillers, 100mL deionizations Water, discharges after being well mixed, and is transferred to extruding pelletization in comminutor, and it is 5mm to control particle diameter, obtains haydite biscuit；Use liquid nitrogen spraying Freeze and haydite biscuit microballoon is obtained after haydite biscuit 20s, coagulation forming, then haydite biscuit microballoon is placed in vacuum freezing drying oven In, 15h is dried at -20 DEG C, haydite microballoon is obtained；20g calcium carbonate is weighed, 30g aluminum oxide, 40g cordierites, 4g potassium feldspars divide It Jia Ru not be crushed in pulverizer, cross 100 mesh sieves, added after the powder after sieving is well mixed in 300mL deionized waters, with 500r/min stirs 1h, adds 15g aluminium dihydrogen phosphates, stirs 1h, obtains glaze slurries；Haydite microballoon is carried out with glaze slurries Hanging is handled, and it is 0.1g/cm to control hanging amount2, after hanging terminates, the haydite microballoon after hanging is transferred to vacuum drying chamber In, it is 0.01MPa to control vacuum in drying box, and 8h is dried at 150 DEG C, biscuit of ceramics microballoon is obtained；By biscuit of ceramics microballoon It is placed in high temperature sintering furnace, under argon atmosphere, is warming up to 300 DEG C with 20 DEG C/min, heat-insulation preheating 15min is continuously heating to 1300 DEG C, insulation calcining 1h is cooled to after room temperature and discharged, obtains hydrophobicity light ceramic.
Example 3
The sludge of sewage treatment plants second pond is taken, is fitted into after centrifugal dehydration in drying box, is dried at 110 DEG C to perseverance Weight, then desciccate is placed in tube furnace, 2h is calcined at 850 DEG C, is cooled to after room temperature and calcined product is loaded into pulverizer It is middle to crush, 100 mesh sieves are crossed, sludge calcining lime-ash is obtained；4g kaolin is weighed, 4g bentonites, 1.7g hydrotalcites load ball mill In, with 250r/min ball milling 40min, 3g hydroxymethyl celluloses, 12g magnesium sulfate and 2g calcium stearates are added, continues ball milling 1h, Obtain mixed fillers；350g flyash and 270g cullet are weighed again, is fitted into grinder and grinds, and are crossed 200 mesh sieves, are obtained composite powder End, and composite powder is fitted into batch mixer, add 350g sludge calcining lime-ash, 9g mixed fillers, 150mL deionizations Water, discharges after being well mixed, and is transferred to extruding pelletization in comminutor, and it is 7mm to control particle diameter, obtains haydite biscuit；Use liquid nitrogen spraying Freeze and haydite biscuit microballoon is obtained after haydite biscuit 25s, coagulation forming, then haydite biscuit microballoon is placed in vacuum freezing drying oven In, 17h is dried at -15 DEG C, haydite microballoon is obtained；22g calcium carbonate is weighed, 33g aluminum oxide, 42g cordierites, 5g potassium feldspars divide It Jia Ru not be crushed in pulverizer, cross 100 mesh sieves, added after the powder after sieving is well mixed in 350mL deionized waters, with 550r/min stirs 2h, adds 16g aluminium dihydrogen phosphates, stirs 2h, obtains glaze slurries；Haydite microballoon is carried out with glaze slurries Hanging is handled, and it is 0.1g/cm to control hanging amount2, after hanging terminates, the haydite microballoon after hanging is transferred to vacuum drying chamber In, it is 0.04MPa to control vacuum in drying box, and 9h is dried at 155 DEG C, biscuit of ceramics microballoon is obtained；By biscuit of ceramics microballoon It is placed in high temperature sintering furnace, under argon atmosphere, is warming up to 350 DEG C with 20 DEG C/min, heat-insulation preheating 17min is continuously heating to 1400 DEG C, insulation calcining 2h is cooled to after room temperature and discharged, obtains hydrophobicity light ceramic.
The haydite that example 1 is prepared to example 3 and reference examples is detected that detection data are as follows, such as table 1：
Table 1
Detect data Reference examples Example 1 Example 2 Example 3
Bucket Compressive Strength（MPa） 2.8 6.8 7.0 7.9
Water absorption rate（%） 10.1 6.8 7.2 8.2
Unit weight（kg/m3） 320 280 290 300
Above-described embodiment is not limited for the present invention preferably embodiment, but embodiments of the present invention by above-described embodiment System, other any Spirit Essences without departing from the present invention and the change made under principle, modification, replacement, combine, simplification, Equivalent substitute mode is should be, is included within protection scope of the present invention.

Claims (5)

1. a kind of preparation method of hydrophobicity light ceramic, it is characterised in that specifically preparation process is：
（1）Take the sludge of sewage treatment plants second pond, after centrifugal dehydration dry, then at 800~900 DEG C calcining 1~ Pulverized and sieved after 2h, cooling, obtain sludge calcining lime-ash；
（2）Kaolin, bentonite, hydrotalcite 30~50min of ball milling are taken, hydroxymethyl cellulose, magnesium sulfate and stearic acid is added Calcium, continues 1~2h of ball milling, obtains mixed fillers；
（3）It will be mixed after flyash and the sieving of cullet multiple grinding with sludge calcining lime-ash, mixed fillers, deionized water, and Extruding pelletization in comminutor is transferred to, it is 5~10mm to control particle diameter, obtains haydite biscuit；
（4）By haydite biscuit after 20~30s of liquid nitrogen flash freezer 15~20h of vacuum freeze drying, obtain haydite microballoon；
（5）Take calcium carbonate, aluminum oxide, cordierite, potassium feldspar to be added after being pulverized and mixed and 1~2h is stirred in deionized water, add Aluminium dihydrogen phosphate, stirs 1~2h, obtains glaze slurries；
（6）Hanging processing is carried out to haydite microballoon with glaze slurries, it is 0.1~0.2g/cm to control hanging amount2, then by after hanging Haydite microballoon it is dry biscuit of ceramics microballoon；
（7）Discharged after biscuit of ceramics microballoon is calcined, obtain hydrophobicity light ceramic.
2. a kind of preparation method of hydrophobicity light ceramic as claimed in claim 1, it is characterised in that step（2）Described The parts by weight of material are 3~5 parts of kaolin, 3~5 parts of bentonites, 1.5~2.0 parts of hydrotalcites, 2~3 parts of hydroxymethyl celluloses, 1 ~2 parts of magnesium sulfate and 2~3 parts of calcium stearates.
3. a kind of preparation method of hydrophobicity light ceramic as claimed in claim 1, it is characterised in that step（3）Described Flyash, cullet, sludge calcining lime-ash, mixed fillers, the parts by weight of deionized water are 300~400 parts of flyash, 250~ 350 parts of cullet, 300~400 parts of sludge calcine lime-ash, 8~10 parts of mixed fillers, 100~200 parts of deionized waters.
4. a kind of preparation method of hydrophobicity light ceramic as claimed in claim 1, it is characterised in that step（5）Described Calcium carbonate, aluminum oxide, cordierite, potassium feldspar, deionized water, the parts by weight of aluminium dihydrogen phosphate are 20~25 parts of calcium carbonate, 30~ 35 parts of aluminum oxide, 40~45 parts of cordierites, 4~5 parts of potassium feldspars, 300~400 parts of deionized waters, 15~16 parts of aluminium dihydrogen phosphates.
5. a kind of preparation method of hydrophobicity light ceramic as claimed in claim 1, it is characterised in that step（7）Described Calcination process is specially under argon atmosphere, to be warming up to 300~400 DEG C with 20 DEG C/min, 15~20min of heat-insulation preheating continues It is warming up to 1300~1500 DEG C, 1~2h of insulation calcining.
CN201710337148.8A 2017-05-14 2017-05-14 A kind of preparation method of hydrophobicity light ceramic Pending CN107129317A (en)

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CN107902934A (en) * 2017-11-14 2018-04-13 谭芹 A kind of preparation method of porous ceramics floating bead
CN108424051A (en) * 2018-04-23 2018-08-21 戴琪 A kind of light aggregate concrete and preparation method thereof
CN108640651A (en) * 2018-07-05 2018-10-12 常州五荣化工有限公司 A kind of anti-static ceramic tile and preparation method thereof
CN109912296A (en) * 2019-02-25 2019-06-21 江苏常大绿恒环境工程有限公司 A kind of preparation method of low-temperature type water-permeable brick
CN110550936A (en) * 2019-09-20 2019-12-10 沈阳航空航天大学 Method for improving thickness of outer enamel layer of ceramsite by using sludge slurry
CN110922161A (en) * 2019-11-06 2020-03-27 成都南联科技有限公司 Method for preparing building ceramsite by using quartz sand tailings
CN111423174A (en) * 2020-03-24 2020-07-17 西安顺通建材有限责任公司 Recycled concrete and preparation method thereof
CN112142444A (en) * 2020-08-24 2020-12-29 辽宁大学 Plate-type ceramsite prepared from dewatered sludge, and preparation method and application thereof
CN112624673A (en) * 2020-12-23 2021-04-09 杭州余杭恒力混凝土有限公司 High-substitution-rate recycled aggregate concrete and preparation process thereof
CN113788688A (en) * 2021-09-15 2021-12-14 武汉科技大学 Lightweight refractory aggregate based on fly ash and preparation method thereof
CN114591058A (en) * 2022-03-30 2022-06-07 中建安装集团有限公司 Self-curing sludge-based material for road filler and preparation method thereof
CN114920530A (en) * 2022-03-28 2022-08-19 佛山辰石环保材料有限公司 Sintering-free ceramsite and preparation method thereof
CN115180972A (en) * 2022-09-09 2022-10-14 山东高速环保科技有限公司 Preparation method of light sewage treatment material
CN115337922A (en) * 2022-08-01 2022-11-15 浙江大学 Ceramsite catalyst based on activated sludge biomass fuel ash, and preparation method and application thereof

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CN106348729A (en) * 2016-08-28 2017-01-25 仇颖超 Production method of environment-friendly lightweight brick

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CN106278276A (en) * 2016-08-16 2017-01-04 梅庆波 A kind of preparation method of densification carborundum based material
CN106348729A (en) * 2016-08-28 2017-01-25 仇颖超 Production method of environment-friendly lightweight brick

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CN107902934B (en) * 2017-11-14 2021-01-29 谭芹 Preparation method of porous ceramic floating beads
CN107902934A (en) * 2017-11-14 2018-04-13 谭芹 A kind of preparation method of porous ceramics floating bead
CN108424051A (en) * 2018-04-23 2018-08-21 戴琪 A kind of light aggregate concrete and preparation method thereof
CN108640651A (en) * 2018-07-05 2018-10-12 常州五荣化工有限公司 A kind of anti-static ceramic tile and preparation method thereof
CN109912296A (en) * 2019-02-25 2019-06-21 江苏常大绿恒环境工程有限公司 A kind of preparation method of low-temperature type water-permeable brick
CN110550936A (en) * 2019-09-20 2019-12-10 沈阳航空航天大学 Method for improving thickness of outer enamel layer of ceramsite by using sludge slurry
CN110922161A (en) * 2019-11-06 2020-03-27 成都南联科技有限公司 Method for preparing building ceramsite by using quartz sand tailings
CN111423174B (en) * 2020-03-24 2021-12-10 西安顺通建材有限责任公司 Recycled concrete and preparation method thereof
CN111423174A (en) * 2020-03-24 2020-07-17 西安顺通建材有限责任公司 Recycled concrete and preparation method thereof
CN112142444A (en) * 2020-08-24 2020-12-29 辽宁大学 Plate-type ceramsite prepared from dewatered sludge, and preparation method and application thereof
CN112624673A (en) * 2020-12-23 2021-04-09 杭州余杭恒力混凝土有限公司 High-substitution-rate recycled aggregate concrete and preparation process thereof
CN113788688B (en) * 2021-09-15 2022-06-14 武汉科技大学 Lightweight refractory aggregate based on fly ash and preparation method thereof
CN113788688A (en) * 2021-09-15 2021-12-14 武汉科技大学 Lightweight refractory aggregate based on fly ash and preparation method thereof
CN114920530A (en) * 2022-03-28 2022-08-19 佛山辰石环保材料有限公司 Sintering-free ceramsite and preparation method thereof
CN114591058B (en) * 2022-03-30 2022-08-12 中建安装集团有限公司 Self-maintenance sludge-based material for road filler and preparation method thereof
CN114591058A (en) * 2022-03-30 2022-06-07 中建安装集团有限公司 Self-curing sludge-based material for road filler and preparation method thereof
CN115337922A (en) * 2022-08-01 2022-11-15 浙江大学 Ceramsite catalyst based on activated sludge biomass fuel ash, and preparation method and application thereof
CN115180972A (en) * 2022-09-09 2022-10-14 山东高速环保科技有限公司 Preparation method of light sewage treatment material
CN115180972B (en) * 2022-09-09 2022-11-22 山东高速环保科技有限公司 Preparation method of light sewage treatment material

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