CN101033124A - Method of preparing thermal insulating mortar from solid waste - Google Patents

Method of preparing thermal insulating mortar from solid waste Download PDF

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Publication number
CN101033124A
CN101033124A CN 200710037388 CN200710037388A CN101033124A CN 101033124 A CN101033124 A CN 101033124A CN 200710037388 CN200710037388 CN 200710037388 CN 200710037388 A CN200710037388 A CN 200710037388A CN 101033124 A CN101033124 A CN 101033124A
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group
water
polystyrene foam
powder
waste
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CN 200710037388
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Chinese (zh)
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CN100465125C (en
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杨瑞海
陆文雄
李柯
余淑华
李小亮
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上海大学
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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
    • C04B40/00Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
    • C04B40/0028Aspects relating to the mixing step of the mortar preparation
    • C04B40/0039Premixtures of ingredients
    • 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
    • C04B20/00Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
    • C04B20/02Treatment
    • C04B20/026Comminuting, e.g. by grinding or breaking; Defibrillating fibres other than asbestos
    • 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
    • C04B20/00Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
    • C04B20/10Coating or impregnating
    • C04B20/12Multiple coating or impregnating
    • 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
    • C04B40/00Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
    • C04B40/06Inhibiting the setting, e.g. mortars of the deferred action type containing water in breakable containers ; Inhibiting the action of active ingredients
    • C04B40/0641Mechanical separation of ingredients, e.g. accelerator in breakable microcapsules
    • C04B40/065Two or more component mortars
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/90Reuse, recycling or recovery technologies cross-cutting to different types of waste
    • Y02W30/91Use of waste materials as fillers for mortars or concrete
    • Y02W30/92Combustion residues, e.g. purification products of smoke, fumes or exhaust gases
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/90Reuse, recycling or recovery technologies cross-cutting to different types of waste
    • Y02W30/91Use of waste materials as fillers for mortars or concrete
    • Y02W30/94Use of waste materials as fillers for mortars or concrete from metallurgical processes

Abstract

This invention relates to a method for preparing heat-preservation mortar utilizing solid castoffs, in which, the raw material is composed of two groups: group A includes the following components and weight percentage: slag powder 20-40%, powdered coal ash 20-30%, Portland cement 30-40%, Ca reinforcing agent 5-15%, abandon polystyrene foams 3-8%, PP fiber 0.05-0.15%, re-dispersible latex powder 1-3%, water preservation agent 0.2-0.6%, water reducer 0.1-0.5%, defoamer 0.05-0.10%, and quartz sand is the raw material of group B, and the weight ratio of group A and B is 1:1. Raw materials of group A are weighed and matched then to be put into a sterring mill and mixed uniformly and then quartz sand of equal volume is added in it to be mixed continuously to get the heat preservation mortar, which can be used by adding suitable volume of water.

Description

利用固体废弃物制备保温砂浆的方法 Prepared by the method of thermal insulation of solid waste

技术领域 FIELD

本发明涉及利用固体废弃物制备保温砂浆的方法,属化学建筑材料以及废渣综合利用技术领域。 The present invention relates to a process for preparing solid waste thermal insulation, building materials, and is a chemical waste utilization art.

背景技术 Background technique

建筑材料中广泛使用性能优良的保温材料及科学的保温技术,将取得良好的社会效益和经济效益。 Widely used in building materials with excellent performance insulation materials science and insulation technology, we will achieve good social and economic benefits.

保温砂浆是以某些绝热性能较好的材料为骨料,配以胶凝材料、助剂、水,按一定比例配合制成用于墙体绝热的砂浆。 Thermal insulation is better insulation performance of some of the aggregate material, together with the cementitious materials, additives, water, by a certain percentage for Mortar made of heat-insulating wall. 传统的保温砂浆是以膨胀珍珠岩为骨料,但因膨胀珍珠岩吸水率很高,脆性大,粘结强度低、抗裂性差,无法满足现代建筑对保温砂浆的性能要求,如轻质、隔音、绝热、环保等。 Traditional insulation mortar aggregate is expanded perlite, expanded perlite but high water absorption, brittleness, low adhesive strength, crack resistance is poor, unable to meet the performance requirements of modern building insulation mortar, such as light, noise insulation and environmental protection.

随着国家对建筑节能和固体废弃物再利用重视力度的加大,以废弃聚苯乙烯颗粒取代膨胀珍珠岩,以矿渣粉、粉煤灰部分替代水泥来配制保温砂浆,是一种创新,对建筑材料的发展和开拓创建了一个新途径。 Along with the increased EEB attention and solid waste recycling efforts to polystyrene particles substituted expanded perlite waste to slag powder, fly ash cement replacement part formulated insulation mortar, it is an innovation, develop and market construction materials have created a new way.

发明内容 SUMMARY

本发明的目的是提供一种大掺量固体废弃物来制备保温砂浆的方法。 Object of the present invention is to provide a dosage large solid waste to a method of preparation of thermal insulation. 本发明的另一目的是提供一种具有低导热系数、容重轻、不开裂、不空鼓、保温强、隔音好、无毒无污染的砂浆。 Another object of the present invention is to provide a low thermal conductivity, light weight, no cracking, no hollowing, strong insulation, sound insulation, toxic pollution mortar.

本发明一种利用固体废弃物制备保温砂浆的方法,其特征在于具有以下的工艺过程:a.确定原料配方,选定所用的原料及其重量百分配比;原料分成A组和B组两组;A组的各组分及其重量百分比为:矿渣粉 20~40%粉煤灰 20~30%硅酸盐水泥 30~40%增钙剂 5~15%废弃聚苯乙烯泡沫 3~8%聚丙烯纤维 0.05~0.15%可再分散乳胶粉 1~3% The present invention is a method for the preparation of solid waste by using thermal insulation, which is characterized by the following process:. A determination starting material formulation, the raw materials used and the weight percent ratio selected; material divided into two groups of group A and group B ; and each component of group a weight percent: 20-40% slag powder 20 to 30% of fly ash Portland cement by 30 to 40% 5 to 15% calcium polystyrene foam waste 3-8% 0.05 to 0.15% polypropylene fibers redispersible powder, 1 to 3%

保水剂 0.2~0.6%减水剂 0.1~0.5%消泡剂 0.05~0.10%B组的原料为细度过40目筛的石英砂;A组原料中:矿渣粉的细度要求为45μm方孔筛余量≤1%;粉煤灰为II级粉煤灰,细度要求为45μm方孔筛余量≤10%;硅酸盐水泥为42.5强度等级硅酸盐水泥;增钙剂为CaO、Ca(OH)2和少量的CaCO3;聚丙烯纤维其直径为30~50μm,长度为5~10mm;可再分散乳胶粉为细度为100目的苯乙烯-丙烯酸可再分散乳胶粉;保水剂为纤维素醚;减水剂为粉状萘系减水剂;消泡剂为干粉消泡剂;b.废弃聚苯乙烯泡沫的预处理:将废弃聚苯乙烯泡沫破碎为1.5~3.0mm的不规则颗粒,并对此聚苯乙烯泡沫颗粒进行改性;先将适量的有机胶结材料用水稀释,随后加入聚苯乙烯泡沫并搅拌至颗粒表面被完全润湿,再加入适量水泥,充分搅拌,待颗粒表面包裹了一层水泥浆体后,取 Aquasorb superplasticizer 0.2% to 0.6% 0.1 to 0.5% 0.05 to 0.10% defoamer material group B as a fine quartz sand through the 40 mesh sieve; raw material group A: fineness slag powder is 45μm square hole the sieve ≤1%; Fly ash is a class II, fineness is 45μm square hole screen residue ≤10%; strength grade 42.5 portland cement Portland cement; calcium increased as CaO, Ca (OH) 2 and a small amount - CaCO3; polypropylene fiber having a diameter of 30 ~ 50μm, a length of 5 ~ 10mm; redispersible powders of 100 mesh fineness styrene - acrylic redispersible powder; water retention agent is cellulose ethers; powdery water reducing agents of naphthalene superplasticizer; defoamer dry powder defoamer; B pretreated waste polystyrene foam: crushing the waste polystyrene foam is not 1.5 ~ 3.0mm regular particles, and this modified polystyrene foam particles; first diluted with an organic cementitious material a suitable amount of water, followed by addition of polystyrene foam particles and stirred until the surface is completely wetted, and then adding an appropriate amount of cement, sufficient stirring, until after the particle surface was covered with a cement paste, taking 进行陈化一定时间后待用;c.按原料配方称取A、B两组各原料组分进行配料,A组原料与B组原料的重量配比为1∶1;光将A组原料通过高效搅拌机充分搅拌混和均匀后,再加入等量石英砂,然后进一步搅拌,混和均匀后即得保温砂浆;使用时加入适量水调和后即可应用。 After a certain aging period stand; C Weigh the raw material formulation A, B groups of each compounding raw material components, A group B group material and the weight ratio of the raw material 1:1; light feedstock through Group A efficient stirring mixer sufficiently mixed evenly, then add an equal amount of quartz sand, and then further stirring, a uniform mixture is obtained after thermal insulation; application of the appropriate amount of water was added to reconcile the use.

本发明方法制得的保温砂浆的特点和优点如下:(1)本发明中固体废弃物占有较大比重,其用量占全部原料总重量的50%以上,充分利用了矿渣粉、粉煤灰、废弃聚苯乙烯泡沫等固体废弃物,对减少环境污染、减少或部分替代水泥、节省能源,具有重要意义。 The method of the present invention was prepared thermal insulation characteristics and advantages are as follows: (1) the present invention, a large proportion of the solid waste, which is used in an amount of more than 50% of the total weight of the total feed, full use of slag powder, fly ash, polystyrene foam waste and other solid waste, to reduce environmental pollution, reduce or partial replacement of cement, to save energy, important.

(2)本发明方法所制得的砂浆容重轻,干燥密度为300~460kg/m3;保温绝热性能好,其导热系数为0.06~0.12W/m·k。 (2) the method according to the present invention, the obtained light weight mortar, dried density of 300 ~ 460kg / m3; good thermal insulation properties, its thermal conductivity is 0.06 ~ 0.12W / m · k.

(3)砂浆的粘结性能好,与墙面粘结牢固;砂浆无毒、无味、对人体无害;使用性能好,不开裂,不空鼓,使用寿命长;另外使用方便,施工方便。 (3) good bonding properties of mortar, bonded firmly to the wall; mortar non-toxic, odorless, harmless to human body; good performance, cracking, hollowing, long service life; in addition easy to use and easy construction.

具体实施方式 Detailed ways

现将本发明的具体实施例叙述于后。 Specific embodiments will now be described in the embodiment of the present invention.

实施例1配制A组原料100kg,其各组分原料重量为:矿渣粉 31.6kg粉煤灰 20kg硅酸盐水泥 30kg增钙剂CaO 12kg废弃聚苯乙烯泡沫 4kg聚丙烯纤维 0.10kg可再分散乳剂粉 1.8kg保水剂 0.25kg减水剂 0.17kg消泡剂 0.08kgB组原料石英砂 100kg先将A组原料放于搅拌机内,充分搅拌约15分钟,混合均匀后,再加入石英砂,继续搅拌约15分钟,混合均匀后即可得保温砂浆;使用时加入适量水调和后即可使用。 Example 1 A set of starting materials formulated 100kg, which is a raw material of the components by weight: 31.6kg slag powder fly ash Portland Cement 20kg 30kg increased calcium CaO 12kg polypropylene fiber waste Styrofoam 4kg 0.10kg redispersible emulsion superplasticizer powder 1.8kg 0.25kg 0.17kg aquasorb antifoaming 0.08kgB first set of starting materials quartz sand 100kg group A material placed in the mixer, stir about 15 minutes, after mixing, quartz sand was added and stirring was continued for about 15 minutes after mixing to obtain a uniform thermal insulation; it can be used after adding an appropriate amount of water used when blending.

实施例2配制A组原料100kg,其各组分原料重量为:矿渣粉 23.2kg粉煤灰 25kg硅酸盐水泥 32.4kg增钙剂CaO 10kg废弃聚苯乙烯泡沫 6kg聚丙烯纤维 0.08kg可再分散乳剂粉 2.57kg保水剂 0.4kg减水剂 0.3kg消泡剂 0.05kgB组原料石英砂 100kg先将A组原料放于搅拌机内,充分搅拌约15分钟,混合均匀后,再加入石英砂,继续搅拌约15分钟,混合均匀后即可得保温砂浆;使用时加入适量水调和后即可使用。 Example 2 A set of starting materials formulated 100kg, the weight of material which the components: fly ash slag powder 25kg 23.2kg 32.4kg of Portland cement by calcium CaO 10kg of waste polystyrene foam polypropylene fibers 0.08kg 6kg redispersible emulsion powder 2.57kg aquasorb 0.3kg 0.4kg superplasticizer defoamer 0.05kgB first set of starting materials quartz sand 100kg group A material placed in the mixer, stir about 15 minutes, after mixing, quartz sand was added, and stirring was continued for about 15 minutes after mixing to obtain a uniform thermal insulation; it can be used after adding an appropriate amount of water used when blending.

实施例3配制A组原料100kg,其各组分原料重量为:矿渣粉 21kg粉煤灰 30kg硅酸盐水泥 34.5kg增钙剂CaO 5kg废弃聚苯乙烯泡沫 7kg聚丙烯纤维 0.12kg可再分散乳剂粉 1.38kg保水剂 0.5kg减水剂 0.4kg消泡剂 0.10kgB组原料石英砂 100kg先将A组原料放于搅拌机内,充分搅拌约15分钟,混合均匀后,再加入石英砂,继续搅拌约15分钟,混合均匀后即可得保温砂浆;使用时加入适量水调和后即可使用。 Example 3 A group of raw materials formulated 100kg, the weight of material which the components: fly ash slag powder 21kg 30kg 34.5kg of Portland cement by calcium CaO 5kg 7kg waste polystyrene foam polypropylene fibers 0.12kg redispersible emulsion superplasticizer powder 1.38kg 0.5kg 0.4kg aquasorb antifoaming 0.10kgB first set of starting materials quartz sand 100kg group A material placed in the mixer, stir about 15 minutes, after mixing, quartz sand was added and stirring was continued for about 15 minutes after mixing to obtain a uniform thermal insulation; it can be used after adding an appropriate amount of water used when blending.

将上述实施例中制得的砂浆干料加入适量水,使砂浆拌和物稠度达到80mm,按标准要求成型制成试样。 The above-described embodiments, the dry mortar material prepared by adding appropriate amount of water, so that the consistency of mortar mixes reached 80mm, according to the standard molded into a sample.

砂浆的稠度、分层度、容量、抗压强度按JGJ 70-90《建筑砂浆基本性能所测试方法》进行;砂浆的粘结强度参照JGJ 110-98《建筑工程饰面砖粘结强度检验标准》进行;砂浆的导热系数参照JGJ 51-80《轻集料混凝土技术规程》测定,试样自然养护28天,烘干至恒重,用热脉冲法测量导热系数的装置进行测定。 Mortar consistency, the degree of stratification capacity, Compressive strength JGJ 70-90 "building mortar basic performance test method"; reference bond strength mortar JGJ 110-98 "decorative brick construction adhesive strength test" performed; measurement of thermal Conductivity of the reference mortar JGJ 51-80 "lightweight aggregate concrete technical specification", Nature Conservancy sample 28 days, dried to constant weight, means for measuring the thermal conductivity was measured with a thermal pulse method.

各性能指标参数的测试结果如下表所示: Test results of the performance index parameters as follows:

Claims (1)

1.一种利用固体废弃物制备保温砂浆的方法,其特征在于具有以下的工艺过程:a.确定原料配方,选定所用的原料及其重量百分配比;原料分成A组和B组两组;A组的各组分及其重量百分比为:矿渣粉 20~40%粉煤灰 20~30%硅酸盐水泥 30~40%增钙剂 5~15%废弃聚苯乙烯泡沫 3~8%聚丙烯纤维 0.05~0.15%可再分散乳胶粉 1~3%保水剂 0.2~0.6%减水剂 0.1~0.5%消泡剂 0.05~0.10%B组的原料为细度过40目筛的石英砂;A组原料中:矿渣粉的细度要求为45μm方孔筛余量≤1%;粉煤灰为II级粉煤灰,细度要求为45μm方孔筛余量≤10%;硅酸盐水泥为42.5强度等级硅酸盐水泥;增钙剂为CaO、Ca(OH)2和少量的CaCO3;聚丙烯纤维其直径为30~50μm,长度 1. A process for preparing a thermal insulation using a solid waste, which is characterized by the following process: a determination formula of raw materials and the weight percentage of raw materials used in the selected ratio; feedstock into groups A and B groups. ; and each component of group a weight percent: 20-40% slag powder 20 to 30% of fly ash Portland cement by 30 to 40% 5 to 15% calcium polystyrene foam waste 3-8% raw polypropylene fibers 0.05 to 0.15% redispersible powder, 1 to 3% water-retaining agent 0.2 water reducing agent 0.1 to 0.6% to 0.5% antifoaming agent 0.05 to 0.10% of B is a group of fine quartz sand through the 40-mesh sieve ; group a raw material: fineness slag powder is 45μm square hole screen residue ≤1%; Fly ash is a class II, fineness is 45μm square hole screen residue ≤10%; silicate cement is Portland cement strength grade 42.5; calcium increased as CaO, Ca (OH) 2 and a small amount - CaCO3; polypropylene fiber having a diameter of 30 ~ 50μm, length 5~10mm;可再分散乳胶粉为细度为100目的苯乙烯-丙烯酸可再分散乳胶粉;保水剂为纤维素醚;减水剂为粉状萘系减水剂;消泡剂为干粉消泡剂;b.废弃聚苯乙烯泡沫的预处理:将废弃聚苯乙烯泡沫破碎为1.5~3.0mm的不规则颗粒,并对此聚苯乙烯泡沫颗粒进行改性;先将适量的有机胶结材料用水稀释,随后加入聚苯乙烯泡沫并搅拌至颗粒表面被完全润湿,再加入适量水泥,充分搅拌,待颗粒表面包裹了一层水泥浆体后,取出进行陈化一定时间后待用;c.按原料配方称取A、B两组各原料组分进行配料,A组原料与B组原料的重量配比为1∶1;光将A组原料通过搅拌机充分搅拌混和均匀后,再加入等量石英砂,然后进一步搅拌,混和均匀后即得保温砂浆;使用时加入适量水调和后即可应用。 5 ~ 10mm; redispersible powders of 100 mesh fineness styrene - acrylic redispersible powder; water-retaining agent is a cellulose ether; powdery water reducing agents of naphthalene superplasticizer; defoamer eliminate a dry powder foaming agent; B pretreated waste polystyrene foam: crushing the waste polystyrene foam is irregular particles of 1.5 ~ 3.0mm, and this modified polystyrene foam particles; first amount of an organic cementitious material after dilution with water, followed by addition of polystyrene foam particles and stirred until the surface is completely wetted, and then amount of cement added, stirred well, the surface of the particles to be wrapped in a layer of cement paste, removed after a certain aging time stand; C . Weigh the raw material formulation a, two B components for compounding the raw materials, the weight of the raw material group a and group B starting material ratio of 1:1; group a after the optical material sufficiently homogeneously mixed by stirring by a stirrer, then adding an equal the amount of quartz sand, and then further stirring, a uniform mixture is obtained after thermal insulation; the application can use the appropriate amount of water was added to reconcile.
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