CN115707669A - Method for producing concrete composite mineral admixture - Google Patents
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- CN115707669A CN115707669A CN202110948783.6A CN202110948783A CN115707669A CN 115707669 A CN115707669 A CN 115707669A CN 202110948783 A CN202110948783 A CN 202110948783A CN 115707669 A CN115707669 A CN 115707669A
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- 239000004567 concrete Substances 0.000 title claims abstract description 39
- 229910052500 inorganic mineral Inorganic materials 0.000 title claims abstract description 31
- 239000011707 mineral Substances 0.000 title claims abstract description 31
- 239000002131 composite material Substances 0.000 title claims abstract description 28
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 22
- 239000002994 raw material Substances 0.000 claims abstract description 55
- 239000002893 slag Substances 0.000 claims abstract description 35
- 238000000034 method Methods 0.000 claims abstract description 15
- 239000002245 particle Substances 0.000 claims abstract description 15
- 238000000227 grinding Methods 0.000 claims abstract description 14
- 239000000843 powder Substances 0.000 claims abstract description 8
- 229910021487 silica fume Inorganic materials 0.000 claims abstract description 7
- 238000007885 magnetic separation Methods 0.000 claims abstract description 4
- 229910052751 metal Inorganic materials 0.000 claims abstract description 4
- 239000002184 metal Substances 0.000 claims abstract description 4
- 239000010453 quartz Substances 0.000 claims abstract description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 4
- 238000001035 drying Methods 0.000 claims abstract description 3
- 239000010881 fly ash Substances 0.000 claims description 8
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 6
- 239000011398 Portland cement Substances 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 3
- SLINHMUFWFWBMU-UHFFFAOYSA-N Triisopropanolamine Chemical compound CC(O)CN(CC(C)O)CC(C)O SLINHMUFWFWBMU-UHFFFAOYSA-N 0.000 claims description 3
- 229940037003 alum Drugs 0.000 claims description 3
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 claims description 3
- 239000011780 sodium chloride Substances 0.000 claims description 3
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 3
- 235000011152 sodium sulphate Nutrition 0.000 claims description 3
- 239000002956 ash Substances 0.000 claims description 2
- 238000007689 inspection Methods 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims 2
- 238000005070 sampling Methods 0.000 claims 1
- 238000005303 weighing Methods 0.000 claims 1
- 239000004568 cement Substances 0.000 abstract description 9
- 239000002440 industrial waste Substances 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 6
- 238000003912 environmental pollution Methods 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract description 4
- 238000012360 testing method Methods 0.000 description 11
- 239000004570 mortar (masonry) Substances 0.000 description 7
- 239000011148 porous material Substances 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 239000012190 activator Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000011049 filling Methods 0.000 description 6
- 230000036571 hydration Effects 0.000 description 4
- 238000006703 hydration reaction Methods 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000011863 silicon-based powder Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 206010016807 Fluid retention Diseases 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000003487 anti-permeability effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- 238000011155 quantitative monitoring Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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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
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- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
Description
技术领域technical field
本发明涉及复合矿料掺合料制造技术领域，具体为一种生产混凝土复合矿物掺合料的方法。The invention relates to the technical field of manufacturing composite mineral admixtures, in particular to a method for producing concrete composite mineral admixtures.
背景技术Background technique
目前建筑市场上的建筑材料使用的掺合料都是一种或者两种材料制成的，存在强度活性不达标、水化热偏高、抗硫酸盐侵蚀差、胶砂流动度差、泵送性能不好、混凝土保水性差等问题，在工业生产的过程中如炼铁和火力发电等过程中会产生大量的工业废渣若得不到妥善处理会对自然环境产生较大影响。At present, the admixtures used in building materials in the construction market are made of one or two kinds of materials, and the strength and activity are not up to the standard, the heat of hydration is high, the resistance to sulfate corrosion is poor, the fluidity of the mortar is poor, and the pumping Poor performance, poor water retention of concrete, etc. In the process of industrial production, such as ironmaking and thermal power generation, a large amount of industrial waste will be produced. If it is not properly treated, it will have a great impact on the natural environment.
如何将工业废渣以及自然界存在的大量粉性矿料运用于建筑行业是有效的废弃物处理手段符合绿色环保、低碳、废物再利用的环保建设原则，因此本发明提出一种方法来解决上述问题。How to apply industrial waste residues and a large amount of powdery mineral materials existing in nature to the construction industry is an effective means of waste disposal in line with the environmental protection construction principles of green environmental protection, low carbon, and waste reuse. Therefore, this invention proposes a method to solve the above problems .
发明内容Contents of the invention
本发明的目的在于提供一种生产混凝土复合矿物掺合料的方法，以解决上述背景技术中提出的问题。The object of the present invention is to provide a method for producing concrete composite mineral admixture, to solve the problems raised in the above-mentioned background technology.
为实现上述目的，本发明提供如下技术方案：一种生产混凝土复合矿物掺合料的方法，其生产方法具体分为以下步骤：In order to achieve the above object, the present invention provides following technical scheme: a kind of method for producing concrete composite mineral admixture, and its production method is specifically divided into the following steps:
步骤一：运用磁选法将混合矿渣原料A中的磁性金属挑选出来；Step 1: using magnetic separation to select the magnetic metal in the mixed slag raw material A;
步骤二：将混合矿渣原料A投入到立磨机中进行研磨，研磨完成后通过烘干机烘干在由粉选机选择出粉状矿渣原料B；Step 2: Put the mixed slag raw material A into the vertical mill for grinding, after the grinding is completed, dry it through the dryer and select the powdery slag raw material B by the powder separator;
步骤三：将原料C投入到研磨机中进行研磨，研磨后通过气力分级的方法选择处分级原料D；Step 3: Put the raw material C into the grinder for grinding, and select the graded raw material D through the method of pneumatic classification after grinding;
步骤四：将粉状矿渣原料B、分级原料D以及原料E加入到搅拌机中进行混合搅拌搅拌完成后得到成品F；Step 4: Add powdery slag raw material B, graded raw material D and raw material E into a mixer for mixing and stirring to obtain finished product F after the stirring is completed;
步骤五：对成品F进行定量称重抽检后完成后得到完成品混凝土复合矿物掺合料。Step 5: Quantitatively weigh and sample the finished product F to obtain the finished concrete composite mineral admixture.
更进一步地，所述步骤一中的混合矿渣原料A包括粒化高炉矿渣20-30wt％、硅灰20-30wt％、火山灰10-20wt％、石英粉10-20wt％和复合激发剂2-5wt％。Furthermore, the mixed slag raw material A in the step 1 includes 20-30wt% of granulated blast furnace slag, 20-30wt% of silica fume, 10-20wt% of pozzolan, 10-20wt% of quartz powder and 2-5wt of composite activator %.
更进一步地，所述复合激发剂包括硫酸铝渣40-50wt％、氯化钠10-15wt％、明矾10-10wt％、硫酸钠15-19wt％、三异丙醇胺1-2wt％。Furthermore, the composite activator includes 40-50 wt% of aluminum sulfate slag, 10-15 wt% of sodium chloride, 10-10 wt% of alum, 15-19 wt% of sodium sulfate, and 1-2 wt% of triisopropanolamine.
更进一步地，所述步骤三中的原料C为粉煤灰，通过气力分级处理后的分级原料D为颗粒直径在5-8μm之间的粉煤灰。Furthermore, the raw material C in step 3 is fly ash, and the classified raw material D after pneumatic classification is fly ash with a particle diameter of 5-8 μm.
更进一步地，所述步骤二中粉状矿渣原料B的颗粒直径大小为12-19μm之间。Furthermore, the particle diameter of the powdery slag raw material B in the
更进一步地，所述步骤四中的原料D为颗粒直径在15-20μm的硅酸盐水泥，所述粉状矿渣原料B、分级原料D以及原料E的混合比例为2:1:3。Furthermore, the raw material D in the
与现有技术相比，本发明的有益效果是：Compared with prior art, the beneficial effect of the present invention is:
(1)、该生产混凝土复合矿物掺合料的方法，以工业废渣为主的掺合料在混凝土中的大量应用,首先它意味着混凝土的生产降低了工业废渣自身的环境污染及土地资源浪费其次它减少了胶结材中水泥的用量而间接地减少了由于生产水泥而导致的能源、资源消耗及环境污染。(1) The method for producing concrete composite mineral admixtures, the large-scale application of admixtures based on industrial waste slag in concrete, first of all it means that the production of concrete reduces the environmental pollution of industrial waste slag itself and the waste of land resources Secondly, it reduces the amount of cement in the cement and indirectly reduces the energy, resource consumption and environmental pollution caused by the production of cement.
(2)、该生产混凝土复合矿物掺合料的方法，相较于传统的建筑掺合料，其具有高活性指数高、耐久性强、流动性强、强度佳和水热化底等特点，最重要的是其环保性佳无毒、无害，对健康和环境均安全。(2), the method for producing concrete composite mineral admixtures, compared with traditional building admixtures, has the characteristics of high activity index, high durability, strong fluidity, good strength and hydrothermal bottom, etc. The most important thing is that it is environmentally friendly, non-toxic, harmless, and safe to health and the environment.
附图说明Description of drawings
图1为本发明的水热化试验温度-时间示意图；Fig. 1 is a hydrothermal test temperature-time schematic diagram of the present invention;
图2为本发明的抗冲击形和耐磨性测试结果图。Fig. 2 is a diagram of the test results of impact resistance and wear resistance of the present invention.
具体实施方式Detailed ways
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
需要说明的是，在本发明的描述中，术语“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，并不是指示或暗示所指的装置或元件所必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。It should be noted that, in the description of the present invention, the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", The orientation or positional relationship indicated by "bottom", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply the indicated device Or elements must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention.
此外，应当理解，为了便于描述，附图中所示出的各个部件的尺寸并不按照实际的比例关系绘制，例如某些层的厚度或宽度可以相对于其他层有所夸大。In addition, it should be understood that, for the convenience of description, the dimensions of the various components shown in the drawings are not drawn according to the actual scale relationship, for example, the thickness or width of some layers may be exaggerated relative to other layers.
应注意的是，相似的标号和字母在下面的附图中表示类似项，因此，一旦某一项在一个附图中被定义或说明，则在随后的附图的说明中将不需要再对其进行进一步的具体讨论和描述。It should be noted that similar reference numerals and letters denote similar items in the following drawings, therefore, once an item is defined or described in one drawing, it will not need to be redefined in the description of subsequent drawings. It is further discussed and described in detail.
实施例Example
在进行混凝土复合矿物掺合料的生产前需要了解到掺合料在混凝土中的作用，矿物掺合料的化学组成与特点决定它们在混凝土中不仅起到良好的填充密实作用及微集料作用,而且还具有不同的表面吸附作用及火山灰活性。这些功能可改善混凝土内部孔结构,影响混凝土胶凝组分的水化进程,协调混凝土的强度发展,并能有效改善水化产物的组成及结构,优化混凝土内界面过渡区的结构与性能,因而最终提高混凝土的综合性能，进而使用了本发明提供一种生产混凝土复合矿物掺合料的方法进行混凝土复合矿物掺合料的生产。Before the production of concrete composite mineral admixtures, it is necessary to understand the role of admixtures in concrete. The chemical composition and characteristics of mineral admixtures determine that they not only play a good role in filling and compacting and micro-aggregating in concrete. , but also have different surface adsorption and pozzolanic activity. These functions can improve the internal pore structure of concrete, affect the hydration process of concrete cementitious components, coordinate the strength development of concrete, effectively improve the composition and structure of hydration products, and optimize the structure and performance of the transition zone of the inner interface of concrete. Finally, the comprehensive performance of concrete is improved, and the method for producing the concrete composite mineral admixture provided by the invention is used to produce the concrete composite mineral admixture.
如图1-2所示，本发明提供一种技术方案：一种生产混凝土复合矿物掺合料的方法，包括其生产方法具体分为以下步骤：As shown in Figure 1-2, the present invention provides a kind of technical scheme: a kind of method for producing concrete composite mineral admixture, comprise its production method and be specifically divided into the following steps:
步骤一：运用磁选法将混合矿渣原料A中的磁性金属挑选出来，混合矿渣原料A包括粒化高炉矿渣20-30wt％、硅灰20-30wt％、火山灰10-20wt％、石英粉10-20wt％和复合激发剂2-5wt％，复合激发剂包括硫酸铝渣40-50wt％、氯化钠10-15wt％、明矾10-10wt％、硫酸钠15-19wt％、三异丙醇胺1-2wt％，在水泥生产中使用复合激发剂，可以提高强度、特别是后期强度，缩短凝结时间，改善安定性，在水泥强度相同的条件下，使用该激发剂可以减少原料用量，其中硅粉具有极强的火山灰活性性能,硅粉掺入砂浆中后,硅粉颗粒和水接触,部分小颗粒迅速溶解,溶液中富Si2贫Ca2+的凝胶在硅粉粒子表面形成附着层,经过一定时间后,富Sio2贫Ca2凝胶附着层开始溶解,和水泥水化产生的氢氧化钙反应生成CSH凝胶。硅粉的火山灰反应结果是改变了浆体的孔结构,使大孔(大于0.1微米)减少,小孔(小于0.05微米)增加,使孔变细,还使浆体中的ca(OH)2减少,结晶细化。并使其定向程度变弱,细颗粒的硅粉,填充在水泥颗粒空隙间,也使浆体更加密实；Step 1: Use magnetic separation to select the magnetic metal in the mixed slag raw material A. The mixed slag raw material A includes granulated blast furnace slag 20-30wt%, silica fume 20-30wt%, pozzolan 10-20wt%, quartz powder 10- 20wt% and composite activator 2-5wt%, composite activator includes aluminum sulfate slag 40-50wt%, sodium chloride 10-15wt%, alum 10-10wt%, sodium sulfate 15-19wt%, triisopropanolamine 1 -2wt%, the use of composite activators in cement production can increase the strength, especially the late strength, shorten the setting time, and improve the stability. Under the same cement strength, the use of this activator can reduce the amount of raw materials, of which silica fume It has extremely strong pozzolanic activity. After the silicon powder is mixed into the mortar, the silicon powder particles contact with water, and some small particles dissolve quickly. The gel rich in Si2 and poor in Ca 2+ in the solution forms an adhesion layer on the surface of the silicon powder particles. After a certain time, the Sio2- rich Ca2 - poor gel adhesion layer began to dissolve, and reacted with calcium hydroxide produced by cement hydration to form CSH gel. The result of the volcanic ash reaction of silica fume is to change the pore structure of the slurry, reduce the large pores (greater than 0.1 micron), increase the small pores (less than 0.05 micron), make the pores thinner, and make the ca(OH) 2 in the slurry decrease, crystallization refinement. And make the degree of orientation weaker, fine-grained silica fume fills the gaps between cement particles, and also makes the slurry more dense;
步骤二：将混合矿渣原料A投入到立磨机中进行研磨，研磨完成后通过烘干机烘干在由粉选机选择出粉状矿渣原料B，粉状矿渣原料B的颗粒直径大小为12-19μm之间；Step 2: Put the mixed slag raw material A into the vertical mill for grinding. After the grinding is completed, it is dried by a dryer and the powdery slag raw material B is selected by the powder separator. The particle diameter of the powdery slag raw material B is 12 Between -19μm;
步骤三：将原料C投入到研磨机中进行研磨，研磨后通过气力分级的方法选择处分级原料D，原料C为粉煤灰，通过气力分级处理后的分级原料D为颗粒直径在5-8μm之间的粉煤灰，粉煤灰的活性填充行为到砂浆后期才能充分发挥出来。在硬化发展阶段,硬化前期,主要发挥了物理充填料的作用在硬化后硬化后期,又发挥了活性充填料的作用。由于粉煤灰的填充行为,能使砂浆减少内部孔隙,特别是浆体中的毛细孔的通道,这对提高砂浆的抗渗性能十分有利。有些学者把这种填充致密作用称之为“孔隙细化”的“微粒作用”；Step 3: Put the raw material C into the grinder for grinding. After grinding, select the raw material D for classification by means of pneumatic classification. The raw material C is fly ash, and the classified raw material D after the pneumatic classification process has a particle diameter of 5-8 μm Between fly ash, the active filling behavior of fly ash can not be fully exerted until the late stage of mortar. In the hardening development stage, in the early stage of hardening, it mainly plays the role of physical filling material, and in the later stage of hardening after hardening, it also plays the role of active filling material. Due to the filling behavior of fly ash, the mortar can reduce the internal pores, especially the capillary channels in the slurry, which is very beneficial to improve the anti-permeability of the mortar. Some scholars call this filling and compacting effect the "particle effect" of "pore refinement";
步骤四：将粉状矿渣原料B、分级原料D以及原料E加入到搅拌机中进行混合搅拌搅拌完成后得到成品F，原料D为颗粒直径在15-20μm的硅酸盐水泥，粉状矿渣原料B、分级原料D以及原料E的混合比例为2:1:3；Step 4: Add powdery slag raw material B, graded raw material D and raw material E into the mixer for mixing and stirring to obtain finished product F. Raw material D is Portland cement with a particle diameter of 15-20 μm, and powdery slag raw material B , The mixing ratio of graded raw material D and raw material E is 2:1:3;
步骤五：对成品F进行定量称重抽检后完成后得到完成品混凝土复合矿物掺合料。Step 5: Quantitatively weigh and sample the finished product F to obtain the finished concrete composite mineral admixture.
需要注意的是，步骤五中抽检的内容包括定量监测，避免定量时发生错误导致不必要的损失，还包括水分监测，出厂的完成品混凝土复合矿物掺合料的水分要低于1％It should be noted that the content of the random inspection in step five includes quantitative monitoring to avoid unnecessary losses caused by errors in quantification, and also includes moisture monitoring. The moisture content of the finished concrete composite mineral admixture delivered from the factory should be less than 1%.
需要注意的是，进行混凝土复合矿物掺合料的合成过程中，需要进行需水量试验公式为：It should be noted that during the synthesis of concrete composite mineral admixtures, the water demand test formula is required:
式中：X表示需水量，单位为百分数；L1表示试验胶砂流动度达到130mm-140mm时的加水量，单位为毫升；125表示对比胶砂的加水量单位为毫升。In the formula: X represents the water demand, the unit is a percentage; L1 represents the amount of water added when the fluidity of the test mortar reaches 130mm-140mm, the unit is milliliters; 125 represents the water addition amount of the comparative mortar in milliliters.
需要注意的是，生产的混凝土复合矿物掺合料需要进行水热化试验，水热化指物质与水化合时所放出的热，如图1所示为本混凝土复合矿物掺合料水热化温度变化，与18天熟化的常规硅酸盐水泥的水热化温度变化的示意图，从而能够发现相较于常规硅酸盐水泥其水热化程度更低。It should be noted that the produced concrete composite mineral admixture needs to be subjected to a hydrothermal test. Hydrothermalization refers to the heat released when a substance is combined with water. As shown in Figure 1, this concrete composite mineral admixture is hydrothermally tested. The schematic diagram of the temperature change and the hydrothermal temperature change of conventional portland cement aged for 18 days, so that it can be found that the degree of hydrothermalization is lower than that of conventional portland cement.
需要注意的是，为体现混凝土复合矿物掺合料良好的耐磨性能针对混凝土复合矿物掺合料的成品板材进行抗冲击形和耐磨性测试的到的结果如图2所示，并在后续的试验中依次进行抗冻融性试验、干缩试验、渗透性和吸水性试验以及抗酸碱性试验检测其各项指标是否达标，以确定各个原料应用范围。It should be noted that in order to reflect the good wear resistance of concrete composite mineral admixtures, the results of the impact resistance and wear resistance tests of the finished slabs of concrete composite mineral admixtures are shown in Figure 2, and in the follow-up In the test, the freeze-thaw resistance test, drying shrinkage test, permeability and water absorption test, and acid and alkali resistance test are carried out in sequence to check whether the indicators are up to standard, so as to determine the application range of each raw material.
尽管已经示出和描述了本发明的实施例，对于本领域的普通技术人员而言，可以理解在不脱离本发明的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变型，本发明的范围由所附权利要求及其等同物限定。Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications and substitutions can be made to these embodiments without departing from the principle and spirit of the present invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.
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| CN102826779A (en) * | 2012-09-20 | 2012-12-19 | 四川省金桂兰水泥有限责任公司 | Concrete complex mineral admixture and preparation technology thereof |
| CN111233364A (en) * | 2020-03-06 | 2020-06-05 | 广州市圣丰混凝土有限公司 | Composite mineral admixture, preparation method thereof and artificial sand concrete material containing composite mineral admixture |
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| CN102826779A (en) * | 2012-09-20 | 2012-12-19 | 四川省金桂兰水泥有限责任公司 | Concrete complex mineral admixture and preparation technology thereof |
| CN111233364A (en) * | 2020-03-06 | 2020-06-05 | 广州市圣丰混凝土有限公司 | Composite mineral admixture, preparation method thereof and artificial sand concrete material containing composite mineral admixture |
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