WO2016119434A1 - 一种防抗爆地坪材料及其制备方法 - Google Patents

一种防抗爆地坪材料及其制备方法 Download PDF

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Publication number
WO2016119434A1
WO2016119434A1 PCT/CN2015/086536 CN2015086536W WO2016119434A1 WO 2016119434 A1 WO2016119434 A1 WO 2016119434A1 CN 2015086536 W CN2015086536 W CN 2015086536W WO 2016119434 A1 WO2016119434 A1 WO 2016119434A1
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Prior art keywords
mesh
iron alloy
weight
explosion
temperature
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English (en)
French (fr)
Inventor
曹洪生
王新民
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Beijing Jinke Composite Material Co Ltd
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Beijing Jinke Composite Material Co Ltd
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Priority to JP2017538281A priority Critical patent/JP6398013B2/ja
Priority to EP15879633.4A priority patent/EP3252183B1/en
Priority to RU2017120843A priority patent/RU2689251C2/ru
Priority to US15/527,326 priority patent/US10378219B2/en
Publication of WO2016119434A1 publication Critical patent/WO2016119434A1/zh
Anticipated expiration legal-status Critical
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/12—Flooring or floor layers made of masses in situ, e.g. seamless magnesite floors, terrazzo gypsum floors
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/02—Granular materials, e.g. microballoons
    • C04B14/04—Silica-rich materials; Silicates
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/02—Granular materials, e.g. microballoons
    • C04B14/34—Metals, e.g. ferro-silicon
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00974—Uses not provided for elsewhere in C04B2111/00 for pyrotechnic applications, e.g. blasting
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/60—Flooring materials
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F2290/00—Specially adapted covering, lining or flooring elements not otherwise provided for
    • E04F2290/04—Specially adapted covering, lining or flooring elements not otherwise provided for for insulation or surface protection, e.g. against noise, impact or fire
    • E04F2290/044—Specially adapted covering, lining or flooring elements not otherwise provided for for insulation or surface protection, e.g. against noise, impact or fire against impact
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F2290/00—Specially adapted covering, lining or flooring elements not otherwise provided for
    • E04F2290/04—Specially adapted covering, lining or flooring elements not otherwise provided for for insulation or surface protection, e.g. against noise, impact or fire
    • E04F2290/045—Specially adapted covering, lining or flooring elements not otherwise provided for for insulation or surface protection, e.g. against noise, impact or fire against fire
    • 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

Definitions

  • the invention relates to the field of flooring materials, in particular to an anti-explosion-proof floor material and a preparation method thereof.
  • the material requirements of the floor are very strict.
  • the floor material must have an explosion-proof characteristic without sparking. That is, when metal and other hard objects collide and rub against it, no spark (or Mars) can occur, thus avoiding fire and An explosion occurred.
  • the floor materials used in explosion-proof places on the market mainly have the following problems: 1. During the construction, formaldehyde, toluene and other harmful substances are released, which pollutes the environment; 2. Most of them only have anti-static function, and the fire rating is low, which can not meet the market. Anti-explosion requirements; 3, anti-static non-ignition function will decay with the passage of time, generally 2 to 3 years later no longer have anti-static function, and does not have the function of not firing 4, higher cost.
  • the prevention of explosions must be considered from three essential conditions: the source of the explosion ignition, oxygen, and flammable materials. Limiting one of the necessary conditions limits the explosion. At present, machinery and other equipment and personnel in inflammable and explosive places have taken measures to avoid the generation of explosive ignition sources.
  • the ground as a very important part of the flammable and explosive place should also have the function of explosion-proof. Explosion-proof ground is the necessary condition to cut off the ignition source to prevent the explosion from happening.
  • the cause of the explosion ignition source is mainly the spark generated by various friction, impact or static electricity. Therefore, the anti-explosion-proof ground should be durable and stable. It has anti-static and non-ignition functions.
  • anti-explosion floor materials should have: anti-static, non-ignition, fire rating A1, anti-explosion and impact resistance.
  • anti-explosion-proof ground The ground of industrial plant and warehouse is specially treated or added with special materials during the construction process, so that it has the functions of anti-static, non-ignition, fireproof grade A1, anti-riot and impact resistance. , will not cause flashing, flashing ground due to static sparks, friction, collision sparks.
  • the object of the present invention is to overcome the deficiencies of the prior art and to provide an anti-explosion-proof floor material and a preparation method thereof.
  • the material is prepared from an iron alloy having a chemical composition percentage of iron: 85% iron, 8% manganese, 6% silicon, and the balance being carbon.
  • the anti-knocking floor material is composed of the following components: the anti-knocking floor material is composed of the following components: 100 parts by weight of iron alloy, 3 parts by weight of silicon carbonate, 10 parts by weight of rare earth, 5 parts by weight of sodium nitrite, micro silicon powder 8 parts by weight, 20 parts by weight of the cement, the anti-blasting floor material method comprises the following steps:
  • the iron alloy is pulverized to particles below -100 mesh, and then magnetically selected by a magnetic separator to remove impurities, and then sieved with a vibrating sieve to obtain iron alloy particles of about -100 mesh;
  • step 2) Foaming: The iron alloy pellets in step 1) are placed in a sintering tank and sent to a high-temperature furnace to raise the temperature to 1500 ° C. The silicon carbonate and the rare earth are calcined and foamed for 30 hours, and the calcined and foamed material is rapidly cooled to room temperature. And then pulverized to about 100 mesh by a pulverizer to make it into a porous particle;
  • step 3 the pellet obtained in step 2) is sent to a roaster to raise the temperature to 1000 ° C. After the rare earth is mixed, it is rapidly cooled to room temperature. After being crushed by a pulverizer, the sieve is used to screen -6 mesh to +100 mesh. The granules are obtained with metal aggregates which do not generate sparks when impacted or rubbed;
  • step 3 The pellet obtained in step 3) is again sent to the roaster to raise the temperature to 1500 ° C.
  • inert gas is added for rust protection.
  • the material after roasting is cooled to room temperature and pulverized by a pulverizer.
  • the vibrating screen screens out the -6 mesh to +100 mesh particles to obtain a metal aggregate having a non-rusting function;
  • micro-silica powder, sodium nitrite and cement are sequentially added to the metal aggregate obtained in the step 4), and uniformly mixed with a mixer to obtain an anti-explosion-proof floor material.
  • the anti-slip property is the same as that of the general cement floor. When it is combined with the cement base material, it can be combined as a whole without layer; it can not be cleaned by ash, resists pressure, resists bending and tensile, and the construction period is short. No pollution is an environmentally friendly product;
  • the strength is 3-5 times that of terrazzo, and the impact resistance is 2-3 times higher than that of terrazzo;
  • the material of the invention is modified by multiple times of high temperature and multiple times of rare earth to modify the metal aggregate, so that it has the functions of anti-static, non-ignition, fireproof grade A1, anti-riot and impact resistance, and will not be caused by static sparks and friction. Collision sparks cause flashing and flashing. It is mixed with ordinary cement and laid on the surface of the newly built concrete to achieve anti-explosion.
  • the material of the invention also significantly improves the wear resistance of the concrete surface, and at the same time, the anti-pressure, anti-folding, tensile and impact-resisting capabilities are enhanced; and the construction and maintenance are very convenient, and the engineering has good durability and no ash. It has greatly improved the indoor environment of industrial buildings and met the needs of the market.
  • the present invention can adopt different preparation processes to prepare ground materials with low cost and high performance.
  • iron alloy particles the mass percentage of chemical components is: iron 85%, manganese 8%, silicon 6%, the balance of carbon iron alloy is pulverized to -100 mesh particles, and then magnetic separation machine to remove impurities, Then, the sieve is sieved to obtain iron alloy particles of about -100 mesh;
  • step 2) Foaming: The iron alloy pellets in step 1) are placed in a sintering tank and sent to a high-temperature furnace to raise the temperature to 1500 ° C. The silicon carbonate and the rare earth are calcined and foamed for 30 hours, and the calcined and foamed material is rapidly cooled to room temperature. And then pulverized to about 100 mesh by a pulverizer to make it into a porous particle;
  • step 3 the pellet obtained in step 2) is sent to a roaster to raise the temperature to 1000 ° C. After the rare earth is mixed, it is rapidly cooled to room temperature. After being crushed by a pulverizer, the sieve is used to screen -6 mesh to +100 mesh. The granules are obtained with metal aggregates which do not generate sparks when impacted or rubbed;
  • step 3 The pellet obtained in step 3) is again sent to the roaster to raise the temperature to 1500 ° C.
  • inert gas is added for rust protection.
  • the material after roasting is cooled to room temperature and pulverized by a pulverizer.
  • the vibrating screen screens out the -6 mesh to +100 mesh particles to obtain a metal aggregate having a non-rusting function;
  • micro-silica powder, sodium nitrite and cement are sequentially added to the metal aggregate obtained in the step 4), and uniformly mixed with a mixer to obtain an anti-explosion-proof floor material.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Architecture (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Civil Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Floor Finish (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Powder Metallurgy (AREA)
  • Building Environments (AREA)
  • Working Measures On Existing Buildindgs (AREA)

Abstract

一种防抗爆地坪材料，该材料由重量百分比为：铁 85%，锰 8%，硅 6%，余量为碳的铁合金材料和其它的辅料经过发泡、改性和防锈处理得到，其中添加了发泡剂和稀土增强了该地坪材料的导静电性能。

Description

一种防抗爆地坪材料及其制备方法 【技术领域】
本发明涉及地坪材料领域，尤其涉及一种防抗爆地坪材料及其制备方法。
【背景技术】
在工业建筑中，液化石油气站、煤气生产厂、烟花鞭炮生产厂、酒精生产厂，以及能产生粉尘爆炸的面粉厂、纺织厂等因有特殊的消防防爆要求，而对地面施工用的地坪材料要求很严，该地坪材料一定要具有不发火花的防爆特性，即当金属及其他坚硬物体与之发生撞击、摩擦时，不能发生任何火花(或火星)，因而能避免引起火灾及爆炸事故发生。
目前市场上防爆场所采用的地坪材料主要存在以下问题：1、施工时会有甲醛、甲苯等有害物质释放，污染环境；2、大多只具备防静电的功能，防火等级较低，无法满足市场防抗爆的需求；3、防静电不发火功能会随时间的推移而衰减，一般2～3年后就不再具备防静电的功能，且不具备不发火的功能4、成本较高。
防止爆炸的产生必须从三个必要条件来考虑，即爆炸点燃源、氧气、易燃物。限制了其中的一个必要条件，就限制了爆炸的产生。目前，易燃易爆场所内的机械等设备、人员均已采取措施避免爆炸点燃源的产生。而地面作为易燃易爆场所中十分重要的一部分也应该必须具备防爆的功能。防爆地面是从切断爆炸点燃源这一必要条件入手来防止爆炸发生的，引起爆炸点燃源的原因主要是各种摩擦、撞击或静电产生的火花，因此防抗爆地面应持久的、稳定的同时具备防静电、不发火功能。考虑到爆炸产生危害及二次燃烧危害，具有防抗爆需求的建筑物地面应具备抗冲击的功能；防火等级应为A1级。 因此防抗爆地坪材料应具备：防静电、不发火、防火等级为A1级、抗爆抗冲击四个性能。
防抗爆地面的定义：工业厂房、库房的地面在施工过程中经过特殊的处理或添加某种特殊的材料，使其具备防静电、不发火、防火等级A1级、抗暴、耐冲击的功能、，不会因静电火花、摩擦、碰撞火花而引起闪燃、闪爆的地面。
【发明内容】
本发明的目的是为了克服现有技术的不足，提供一种防抗爆地坪材料及其制备方法。
本发明解决上述技术问题的技术方案如下：
该材料是由铁合金制备而成，所述铁合金的化学成分质量百分比为：铁85％，锰8％，硅6％，余量为碳。
该防抗爆地坪材料由以下成分组成：该防抗爆地坪材料由以下成分组成：铁合金100重量份，碳酸硅3重量份，稀土10重量份，亚硝酸钠5重量份，微硅粉8重量份，水泥20重量份，该防抗爆地坪材料方法包含如下步骤：
1)制备铁合金颗粒：将铁合金粉碎至-100目以下颗粒，再用磁选机磁选，除去杂质，然后用振动筛进行筛选，得到-100目左右的铁合金颗粒；
2)发泡：将步骤1)中的铁合金颗粒料装入烧结罐中送入高温炉里升温至1500℃，加入碳酸硅及稀土焙烧发泡30小时，焙烧发泡后的材料迅速冷却到室温，再经过粉碎机粉碎到100目左右，使其成为多孔隙状颗粒物；
3)改性：将步骤2)中得到的颗粒，送入焙烧炉升温至1000℃，加入稀土混合后迅速冷却至室温，经过粉碎机粉碎后，用振动筛筛选出-6目～+100目颗粒即得到具备撞击、摩擦时不产生火花的金属骨料；
4)防锈：将步骤3)中得到的颗粒，再次送入焙烧炉升温至1500℃，焙烧时加入惰性气体进行防锈保护，焙烧反应后的材料冷却至室温，经过粉碎机粉碎后，用振动筛筛选出-6目～+100目颗粒即得到具备不生锈功能的金属骨料；
5)向步骤4)中所得的金属骨料依次加入微硅粉、亚硝酸钠和水泥，用混料机均匀混合后，即得到防抗爆地坪材料。
本发明产品具有如下的特点：
1、防滑性同于一般水泥地面，同水泥基础材料施工时结合为一个整体不起层；洁净不起灰，抗压、抗折、抗拉，施工工期短，无污染属于环保产品；
2、强度是水磨石的3-5倍，抗冲击性比水磨石高2-3倍；
3、具有高耐磨、耐冲击、防静电，耐弱酸、耐盐碱、防锈蚀性能；
4、使用寿命较长(20-30年)
5、具有很强的防冻和耐热性能，最低耐温为-80℃，最高耐温为+200℃；
[有益效果]
本发明材料通过多次高温，多次添加不同量的稀土对金属骨料改性，使其具备防静电、不发火、防火等级A1级、抗暴、耐冲击的功能，不会因静电火花、摩擦、碰撞火花而引起闪燃、闪爆。将它同普通水泥拌和，敷设于刚筑成的混凝土表面，达到防抗爆的目的。本发明材料还使混凝土表面的耐磨性显著提高，同时也使得抗压、抗折、抗拉、抗冲击能力得到增强；并且施工、养护都非常方便，工程使用耐久性好，不起灰，大大改善了工业用房的室内环境，满足了市场的需求。
【具体实施方式】
针对地坪功能要求，本发明可采用不同配比的制备工艺，以制备出成本低，性能高的地面材料。
结合以下实施例对本发明的原理和特征进行描述，所举实例只用于解释本发明，并非用于限定本发明的范围。
实施例1：本发明材料的制备
1)制备铁合金颗粒：将化学成分质量百分比为：铁85％，锰8％，硅6％，余量为碳的铁合金粉碎至-100目以下颗粒，再用磁选机磁选，除去杂质，然后用振动筛进行筛选，得到-100目左右的铁合金颗粒；
2)发泡：将步骤1)中的铁合金颗粒料装入烧结罐中送入高温炉里升温至1500℃，加入碳酸硅及稀土焙烧发泡30小时，焙烧发泡后的材料迅速冷却到室温，再经过粉碎机粉碎到100目左右，使其成为多孔隙状颗粒物；
3)改性：将步骤2)中得到的颗粒，送入焙烧炉升温至1000℃，加入稀土混合后迅速冷却至室温，经过粉碎机粉碎后，用振动筛筛选出-6目～+100目颗粒即得到具备撞击、摩擦时不产生火花的金属骨料；
4)防锈：将步骤3)中得到的颗粒，再次送入焙烧炉升温至1500℃，焙烧时加入惰性气体进行防锈保护，焙烧反应后的材料冷却至室温，经过粉碎机粉碎后，用振动筛筛选出-6目～+100目颗粒即得到具备不生锈功能的金属骨料；
5)向步骤4)中所得的金属骨料依次加入微硅粉、亚硝酸钠和水泥，用混料机均匀混合后，即得到防抗爆地坪材料。
应用实施例1：
中国飞行试验研究院2010年初将依发明实施例1中的防抗爆地坪材料铺设于飞机修理棚，施工面积3000平方米，该地面使用至今没有发生任何起火花事故，证明了本发明材料在实际应用中完全满足特殊工业对地面防抗爆的要求。该材料的各性能参数及特点详见表一。
表一：本发明材料的性能特点
Figure PCTCN2015086536-appb-000001
以上所述，仅为本发明较佳的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到的变化或替换，都应涵盖在本发明的保护范围之内。

Claims (2)

  1. 一种防抗爆地坪材料，其特征在于，该材料是由铁合金制备而成，所述铁合金的化学成分质量百分比为：铁85％，锰8％，硅6％，余量为碳。
  2. 根据权利要求1所述的防抗爆地坪材料，其特征在于：该防抗爆地坪材料由以下成分组成：铁合金100重量份，碳酸硅3重量份，稀土10重量份，亚硝酸钠5重量份，微硅粉8重量份，水泥20重量份，该防抗爆地坪材料方法包含如下步骤：
    1)制备铁合金颗粒：将铁合金粉碎至-100目以下颗粒，再用磁选机磁选，除去杂质，然后用振动筛进行筛选，得到-100目左右的铁合金颗粒；
    2)发泡：将步骤1)中的铁合金颗粒料装入烧结罐中送入高温炉里升温至1500℃，加入碳酸硅及稀土焙烧发泡30小时，焙烧发泡后的材料迅速冷却到室温，再经过粉碎机粉碎到100目左右，使其成为多孔隙状颗粒物；
    3)改性：将步骤2)中得到的颗粒，送入焙烧炉升温至1000℃，加入稀土混合后迅速冷却至室温，经过粉碎机粉碎后，用振动筛筛选出-6目～+100目颗粒即得到具备撞击、摩擦时不产生火花的金属骨料；
    4)防锈：将步骤3)中得到的颗粒，再次送入焙烧炉升温至1500℃，焙烧时加入惰性气体进行防锈保护，焙烧反应后的材料冷却至室温，经过粉碎机粉碎后，用振动筛筛选出-6目～+100目颗粒即得到具备不生锈功能的金属骨料；
    5)向步骤4)中所得的金属骨料依次加入微硅粉、亚硝酸钠和水泥(用混料机均匀混合后，即得到防抗爆地坪材料。
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