CN107935426A - A kind of metal structure with concrete blocking effect - Google Patents
A kind of metal structure with concrete blocking effect Download PDFInfo
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- CN107935426A CN107935426A CN201711040784.0A CN201711040784A CN107935426A CN 107935426 A CN107935426 A CN 107935426A CN 201711040784 A CN201711040784 A CN 201711040784A CN 107935426 A CN107935426 A CN 107935426A
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- ring
- concrete
- metal structure
- pedestal
- shell
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- 229910052751 metal Inorganic materials 0.000 title claims abstract description 40
- 239000002184 metal Substances 0.000 title claims abstract description 40
- 230000000903 blocking effect Effects 0.000 title claims abstract description 27
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical group C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 48
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- 230000037452 priming Effects 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 10
- 238000005336 cracking Methods 0.000 abstract description 6
- 239000000654 additive Substances 0.000 abstract description 2
- 239000004568 cement Substances 0.000 description 13
- 239000002002 slurry Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 10
- 230000004888 barrier function Effects 0.000 description 4
- 238000007711 solidification Methods 0.000 description 4
- 230000008023 solidification Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- IZJSTXINDUKPRP-UHFFFAOYSA-N aluminum lead Chemical compound [Al].[Pb] IZJSTXINDUKPRP-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000000979 retarding effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
- C04B14/005—Inorganic fillers with a shape other than granular or fibrous
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Ceramic Engineering (AREA)
- Nanotechnology (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
Abstract
本专利涉及混凝土添加物领域，公开了一种具有混凝土阻裂作用的金属结构，包括外壳和引料球，所述外壳包括均由金属制成的基架环和两个固定块，基架环呈多边形，基架环的每一条边均向内凹陷，基架环每条边的两侧固定有由金属制成的阻挡臂，两个固定块分别位于基架环的两侧，同一侧的阻挡臂远离基架环的一端固定在固定块上，阻挡臂向内凹陷，相邻两个阻挡臂之间形成有间隙，间隙的宽度小于引料球的直径，引料球位于外壳内，引料球的外表面上设有若干呈锥形的引料锥。本专利意在提供一种在不增加搅拌难度的同时提升混凝土的抗裂效果的金属结构。
This patent relates to the field of concrete additives, and discloses a metal structure with concrete crack resistance, including a shell and a lead ball. The shell includes a metal base ring and two fixing blocks, and the base ring is Polygonal, each side of the base frame ring is concave inward, the two sides of each side of the base frame ring are fixed with metal blocking arms, the two fixing blocks are respectively located on both sides of the base frame ring, and the blocking arms on the same side The end of the arm away from the pedestal ring is fixed on the fixed block, the blocking arm is recessed inward, and a gap is formed between two adjacent blocking arms, the width of the gap is smaller than the diameter of the leading ball, the leading ball is located in the shell, and the outer surface of the leading ball The surface is provided with a plurality of tapered feed cones. This patent intends to provide a metal structure that improves the anti-cracking effect of concrete without increasing the difficulty of mixing.
Description
技术领域technical field
本发明涉及混凝土添加物领域。The invention relates to the field of concrete additives.
背景技术Background technique
由于混凝土的非均匀多相性，其内部不可避免存在空隙、微裂缝等缺陷，而且混凝土的抗拉强度远小于抗压强度，自身存在收缩和徐变，这些都将使混凝土产生裂缝。大量试验研究表明混凝土内部绝大部分裂纹起裂是开始于骨料界面上，然后向基体水泥(砂)浆扩展。Due to the heterogeneous and heterogeneous nature of concrete, there are inevitably defects such as voids and micro-cracks inside, and the tensile strength of concrete is much smaller than the compressive strength, and there is shrinkage and creep in itself, which will cause cracks in concrete. A large number of experimental studies have shown that most of the cracks in concrete start at the aggregate interface and then extend to the matrix cement (sand) slurry.
为了减小混凝土裂缝带来的危害，抑制或延缓裂缝的进一步扩展，通常在混凝土中加入钢筋、纤维、高分子等抗拉性能较高的材料，来弥补混凝土抗拉能力不足的缺点，提高结构的抗破坏能力。这样做虽然在一定程度上起到了减轻混凝土早期开裂，提高材料抗弯韧度等作用，但在混凝土后期出现宏观裂纹时其阻滞裂缝发生和发展效果不佳，混凝土抗拉、抗弯、抗剪、抗疲劳性、裂后韧性和耐久性提升有限，甚至在一些施工环境下提高程度微乎其微，其使用效果非常不稳定。而在加入纤维或高分子材料后，由于其阻滞作用，会大大增加搅拌难度，需要特殊的拌和工艺才能成型，增加了生产和使用成本。In order to reduce the damage caused by concrete cracks and suppress or delay the further expansion of cracks, materials with high tensile properties such as steel bars, fibers, and polymers are usually added to concrete to make up for the shortcomings of concrete tensile capacity and improve the structure. anti-destructive ability. Although this can reduce the early cracking of concrete and improve the flexural toughness of the material to a certain extent, it is not effective in retarding the occurrence and development of cracks when macroscopic cracks appear in the later stage of concrete. The improvement of shear, fatigue resistance, post-crack toughness and durability is limited, and even the improvement is negligible in some construction environments, and its use effect is very unstable. However, after adding fiber or polymer material, due to its blocking effect, it will greatly increase the difficulty of mixing, requiring a special mixing process to form, which increases production and use costs.
因此需要在不增加混凝土搅拌难度的前提下提升混凝土的抗裂效果。Therefore, it is necessary to improve the anti-cracking effect of concrete without increasing the difficulty of concrete mixing.
发明内容Contents of the invention
本发明意在提供一种具有混凝土阻裂作用的金属结构，以在不增加搅拌难度的同时提升混凝土的抗裂效果。The invention intends to provide a metal structure with concrete crack-resistance effect, so as to improve the concrete crack-resistance effect without increasing the difficulty of mixing.
本方案中的一种具有混凝土阻裂作用的金属结构，包括外壳和引料球，所述外壳包括均由金属制成的基架环和两个固定块，基架环呈多边形，基架环的每一条边均向内凹陷，基架环每条边的两侧固定有由金属制成的阻挡臂，两个固定块分别位于基架环的两侧，同一侧的阻挡臂远离基架环的一端固定在固定块上，阻挡臂向内凹陷，相邻两个阻挡臂之间形成有间隙，间隙的宽度小于引料球的直径，引料球位于外壳内，引料球的外表面上设有若干呈锥形的引料锥。A metal structure with concrete crack-resistance function in this scheme includes a casing and a lead ball. The casing includes a pedestal ring and two fixing blocks all made of metal. The pedestal ring is polygonal, and the pedestal ring Each side is sunken inward, and the two sides of each side of the pedestal ring are fixed with blocking arms made of metal. One end is fixed on the fixed block, the blocking arm is sunken inward, and there is a gap formed between two adjacent blocking arms, the width of the gap is smaller than the diameter of the lead ball, the lead ball is located in the shell, and there are several grooves on the outer surface of the lead ball. Conical priming cone.
本方案的技术原理及有益效果为：本方案中的金属结构随水、水泥、砂、外加剂和骨料一起添加到拌和设备中进行拌和，使本金属结构均匀地分布到混凝土内，其阻裂的原理为：The technical principle and beneficial effects of this scheme are: the metal structure in this scheme is added to the mixing equipment together with water, cement, sand, admixture and aggregate for mixing, so that the metal structure is evenly distributed in the concrete, and its resistance The principle of cracking is:
在金属结构被拌和设备拌和的过程中，水泥浆通过阻挡臂之间的间隙流入到外壳内部，但是由于不同坍落度的混凝土的流动性不同，当流动性不足时，可能使外壳内部的空间无法被完全被水泥浆填满而存在孔隙，可能影响混凝土的浇筑质量，因此在外壳内设置了引料球。引料球的外表面上设有若干呈锥形的引料锥，在拌和混凝土时，引料球在外壳内不断转动，转动的过程中引料锥可从阻挡臂之间的间隙伸出，再在转动的过程中又滚回外壳内，在这个过程中，引料锥可将水泥泥浆带入到外壳内部，或者让水泥泥浆自行流入到外壳内部，进而将外壳填满。由于本金属结构呈立体状，可搅拌性好，并不会增加混凝土的拌和难度，避免采用特殊的拌和工艺，避免增加生产成本。When the metal structure is mixed by the mixing equipment, the cement slurry flows into the shell through the gap between the barrier arms, but due to the different fluidity of concrete with different slumps, when the fluidity is insufficient, the space inside the shell may There are pores that cannot be completely filled with cement slurry, which may affect the quality of concrete pouring, so a primer ball is set in the shell. There are several tapered feed cones on the outer surface of the feed ball. When mixing concrete, the feed ball rotates continuously in the shell. During the process, it rolls back into the shell again. In this process, the feed cone can bring the cement slurry into the shell, or let the cement slurry flow into the shell by itself, and then fill the shell. Since the metal structure is three-dimensional, it can be stirred well, and it will not increase the difficulty of concrete mixing, avoiding the use of special mixing technology, and avoiding the increase of production costs.
将含有本金属结构的混凝土进行浇筑的过程中，由于基架环的每一条边和每一个阻挡臂均向内凹陷的设置，而混凝土中的骨料通常为立体结构(即外表面通常呈凸起状)的石粒，使得骨料可以镶嵌在本金属结构的凹陷中，增强混凝土内部骨料界面结合的紧密度，避免形成早期裂缝，进而避免形成早期开裂，尤其在使用振动设备振动混凝土后，骨料界面的紧密度更高，预防早期裂缝效果更好。In the process of pouring concrete containing this metal structure, since each side of the base frame ring and each blocking arm are set inwardly recessed, the aggregate in the concrete is usually a three-dimensional structure (that is, the outer surface is usually convex). The aggregates can be embedded in the depressions of the metal structure, and the tightness of the interface between the aggregates inside the concrete can be enhanced to avoid the formation of early cracks, and then avoid the formation of early cracks, especially after vibrating the concrete with vibrating equipment , the compactness of the aggregate interface is higher, and the effect of preventing early cracks is better.
而当混凝土凝固过程中，当混凝土发生收缩和徐变时，将拉伸外壳发生塑性变形，利用外壳的塑性变形缓冲或者抵消收缩和徐变对骨料的影响，减小裂缝产生的几率。When the concrete is solidified, when the concrete shrinks and creeps, the plastic deformation of the tensile shell occurs, and the plastic deformation of the shell is used to buffer or offset the impact of shrinkage and creep on the aggregate, reducing the probability of cracks.
当混凝土凝固后，如果混凝土内部产生裂缝，裂缝多产生在骨料表面，并且通常平行于骨料表面扩展，当裂缝在扩展到外壳内时，外壳和外壳内的引料球将阻断裂缝的进一步扩展，从而避免裂缝的长度增加；并且即便是发生开裂，外壳内部的水泥浆在凝固后将形成倒钩作用，将外壳周边的混凝土通过阻挡臂之间的间隙牢固地钩在外壳上，并且利用由金属制成的外壳的韧性，增强混凝土的抗拉强度，阻止裂纹扩大。When the concrete is solidified, if cracks occur inside the concrete, most of the cracks are generated on the surface of the aggregate and usually spread parallel to the surface of the aggregate. expansion, so as to avoid the increase in the length of the crack; and even if the crack occurs, the cement slurry inside the shell will form a barb effect after solidification, and the concrete around the shell will be firmly hooked on the shell through the gap between the barrier arms, and use The toughness of the shell, made of metal, enhances the tensile strength of the concrete, preventing cracks from expanding.
综上所述，在混凝土内加入本金属结构，可在混凝土浇筑期间，预防早期开裂，在凝固的过程中减小混凝土收缩和徐变所产生裂缝的几率，在混凝土凝固后发生开裂时阻断裂缝的扩展、提升混凝土的抗拉强度，提升了混凝土的抗裂效果。To sum up, adding this metal structure in concrete can prevent early cracking during concrete pouring, reduce the probability of cracks caused by concrete shrinkage and creep during solidification, and block cracks when concrete solidifies. The expansion of cracks improves the tensile strength of concrete and improves the crack resistance of concrete.
进一步，所述固定块呈环形，且固定块的内径小于所述引料球的外径，固定块与所述基架环平行。环形的固定块在避免引料球从外壳内脱出的前提下实现节省材料，同时环形的固定块可发生塑性变形，有利于升固定块的塑性变形能力，进而提升整个金属结构的阻裂作用，固定块与基架环平行，使同一侧的阻挡臂长度相等，保证外壳各个方向上的抗拉强度的一致性。Further, the fixing block is ring-shaped, and the inner diameter of the fixing block is smaller than the outer diameter of the priming ball, and the fixing block is parallel to the pedestal ring. The ring-shaped fixing block saves material on the premise of preventing the lead ball from coming out of the shell. At the same time, the ring-shaped fixing block can be plastically deformed, which is conducive to improving the plastic deformation capacity of the fixing block, thereby improving the crack resistance of the entire metal structure. The block is parallel to the pedestal ring so that the length of the blocking arms on the same side is equal, ensuring the consistency of the tensile strength in all directions of the shell.
进一步，所述基架环由呈同样的环形的第一基架环和第二基架环对接组成，第一基架环和第二基架环分别与同侧的阻挡臂和固定块一体成型。将基架环分割成为形状相同的第一基架环和第二基架环后，便于将两侧的阻挡臂和固定块分别与第一基架环和第二基架环一体成型加工，一体成型加工后的结构强度更高，再通过焊接、粘接等方式将第一基架环和第二基架环焊接在一起，即可使外壳呈空心的球状，以保证外壳的强度和外壳的塑性变形能力。Further, the pedestal ring is composed of butt jointed first pedestal ring and second pedestal ring in the same ring shape, and the first pedestal ring and the second pedestal ring are integrally formed with the blocking arm and the fixing block on the same side respectively . After the pedestal ring is divided into the first pedestal ring and the second pedestal ring with the same shape, it is convenient to integrally form the blocking arms and the fixing blocks on both sides with the first pedestal ring and the second pedestal ring respectively. The structural strength after molding is higher, and then the first pedestal ring and the second pedestal ring are welded together by welding, bonding, etc., so that the shell can be made into a hollow spherical shape to ensure the strength of the shell and the rigidity of the shell. plastic deformation capacity.
进一步，所述基架环和阻挡臂均由铝片或者铜片组成。铝和铜具有良好的抗拉强度和防锈性能，同时片状的结构塑性变形能力好，有利于保证金属结构的阻裂效果。Further, both the pedestal ring and the barrier arm are composed of aluminum sheet or copper sheet. Aluminum and copper have good tensile strength and anti-rust performance, and at the same time, the sheet-like structure has good plastic deformation ability, which is beneficial to ensure the crack resistance effect of the metal structure.
进一步，所述引料球内部中空。减小引料球的重量，减小引料球的密度，进而降低整个金属结构的密度，避免整个金属结构过重而引起沉降现象，保证金属结构能够均匀地分布到混凝土中。Further, the primer ball is hollow inside. Reduce the weight of the primer ball, reduce the density of the primer ball, and then reduce the density of the entire metal structure, avoid the settlement phenomenon caused by the overweight of the entire metal structure, and ensure that the metal structure can be evenly distributed into the concrete.
进一步，所述引料锥的外表面上开有螺旋形的引料槽，引料槽的轴线与引料锥的轴线同轴。在引料锥从外壳上的间隙中伸出再收回到外壳内的过程中，螺旋形的引料槽可更好地将水泥浆带入到外壳内。Further, the outer surface of the feed cone is provided with a spiral feed groove, and the axis of the feed groove is coaxial with the axis of the feed cone. During the process that the feed cone protrudes from the gap on the shell and then retracts into the shell, the spiral feed groove can better bring the cement slurry into the shell.
附图说明Description of drawings
图1为本发明实施例一种具有混凝土阻裂作用的金属结构的结构示意图；Fig. 1 is a structural schematic diagram of a metal structure with concrete crack resistance in an embodiment of the present invention;
图2为图1中引料球的结构示意图；Fig. 2 is the structural representation of lead ball among Fig. 1;
图3为图1中第一基架环、阻挡臂和固定块三者一体成型后的结构示意图。FIG. 3 is a schematic structural view of the first pedestal ring, the blocking arm and the fixing block in FIG. 1 after being integrally formed.
具体实施方式Detailed ways
下面通过具体实施方式对本发明作进一步详细的说明：The present invention will be described in further detail below by means of specific embodiments:
说明书附图中的附图标记包括：第一基架环1、第二基架环2、阻挡臂3、固定环4、引料球5、引料锥501。The reference signs in the drawings of the description include: the first pedestal ring 1 , the second pedestal ring 2 , the blocking arm 3 , the fixing ring 4 , the priming ball 5 , and the priming cone 501 .
一种具有混凝土阻裂作用的金属结构的实施例基本如附图1所示：包括外壳和铝制的引料球5，引料球5的结构示意图如附图2所示，所述外壳包括铝制的基架环和两个铝制的固定块，固定块呈六边环形，且固定块的内径小于所述引料球5的外径，固定块分别位于基架环两侧且与基架环平行，基架环由呈同样的环形的第一基架环1和第二基架环2对接组成，第一基架环1和第二基架环2为多边形，基架环的每一条边均向内凹陷，基架环每条边的两侧固定有由铝制成的阻挡臂3，第一基架环1和第二基架环2分别与同侧的阻挡臂3和固定块一体成型，如附图3所示，阻挡臂3向内凹陷，将引料球5放置在基架环内，然后将第一基架环1和第二基架环2对齐后焊接固定，使外壳形成一个球笼，相邻两个阻挡臂3之间形成有间隙，间隙的宽度小于引料球5的直径，引料球5内部中空，引料球5整体的平均密度小于1g/cm3,引料球5的外表面上均布有六个呈锥形的引料锥501。An embodiment of a metal structure with concrete crack resistance is basically shown in Figure 1: it includes a shell and an aluminum lead ball 5, and the structural schematic diagram of the lead ball 5 is shown in Figure 2, and the shell includes an aluminum The pedestal ring and two aluminum fixed blocks, the fixed block is a hexagonal ring, and the inner diameter of the fixed block is smaller than the outer diameter of the lead ball 5, the fixed blocks are respectively located on both sides of the pedestal ring and parallel to the pedestal ring , the pedestal ring is composed of butt joints between the first pedestal ring 1 and the second pedestal ring 2 in the same ring shape, the first pedestal ring 1 and the second pedestal ring 2 are polygonal, and each side of the pedestal ring is Recessed inward, the two sides of each side of the pedestal ring are fixed with a blocking arm 3 made of aluminum, the first pedestal ring 1 and the second pedestal ring 2 are integrally formed with the blocking arm 3 and the fixing block on the same side respectively , as shown in accompanying drawing 3, the blocking arm 3 is sunken inward, and the lead ball 5 is placed in the pedestal ring, and then the first pedestal ring 1 and the second pedestal ring 2 are aligned and then welded and fixed, so that the shell forms a Ball cage, a gap is formed between two adjacent blocking arms 3, the width of the gap is smaller than the diameter of the lead ball 5, the inside of the lead ball 5 is hollow, the overall average density of the lead ball 5 is less than 1g/cm3, the outer surface of the lead ball 5 There are six tapered feed cones 501 uniformly distributed on the top.
本实施了中的金属结构均采用铝金属制造，保证金属结构的抗拉强度。本金属结构随水、水泥、砂、外加剂和骨料一起添加到混凝土拌和机中进行拌和，由于引料球5内部中空，引料球5整体的平均密度小于1g/cm3，小于水的密度，再加上外壳的重量，防止整个金属结构的平均密度过大，在拌和的过程中使得本金属结构可被均匀地分散在混凝土内，避免发生沉降。在拌和的过程中，水泥浆通过阻挡臂3之间的间隙流入到外壳内部，引料球5在外壳内不断转动，引料球5上的引料锥501将水泥泥浆带入到外壳内部将其填满，而骨料的外表面则镶嵌在本金属结构的凹陷或者缝隙中，截面结合紧密。由于本金属结构呈立体结构状，拌和时对拌合机的搅拌装置的阻滞作用远小于纤维、高分子材料，避免了增加拌和难度，采用混凝土的常用拌和机即可完成拌和。The metal structures in this implementation are all made of aluminum metal to ensure the tensile strength of the metal structures. The metal structure is added to the concrete mixer together with water, cement, sand, admixture and aggregate for mixing. Since the interior of the introduction ball 5 is hollow, the average density of the introduction ball 5 as a whole is less than 1g/cm 3 , which is lower than the density of water. Coupled with the weight of the shell, the average density of the entire metal structure is prevented from being too large, and the metal structure can be evenly dispersed in the concrete during the mixing process to avoid settlement. During the mixing process, the cement slurry flows into the shell through the gap between the blocking arms 3, the lead ball 5 rotates continuously in the shell, and the lead cone 501 on the lead ball 5 brings the cement slurry into the shell to fill it up. , while the outer surface of the aggregate is inlaid in the depression or gap of the metal structure, and the cross-section is tightly combined. Due to the three-dimensional structure of the metal structure, the blocking effect on the mixing device of the mixer during mixing is much smaller than that of fibers and polymer materials, which avoids increasing the difficulty of mixing, and the mixing can be completed by using a common mixer for concrete.
混凝土凝固过程中，当混凝土发生收缩和徐变时，将拉伸外壳发生塑性变形，利用外壳的塑性变形缓冲或者抵消收缩和徐变对骨料的影响，减小裂缝产生的几率。During the concrete solidification process, when the concrete shrinks and creeps, the plastic deformation of the tensile shell occurs, and the plastic deformation of the shell is used to buffer or offset the impact of shrinkage and creep on the aggregate, reducing the probability of cracks.
混凝土凝固后，如果混凝土内部产生裂缝，裂缝多产生在骨料表面，并且通常平行于骨料表面扩展，当裂缝在扩展到外壳内时，外壳和外壳内的引料球5将阻断裂缝的进一步扩展，从而避免裂缝的长度增加；并且即便是发生开裂，外壳内部的水泥浆在凝固后将形成倒钩作用，将外壳周边的混凝土通过阻挡臂3之间的间隙牢固地钩在外壳上，并且利用由金属制成的外壳的韧性，增强混凝土的抗拉强度，阻止裂纹扩大。After the concrete is solidified, if cracks occur inside the concrete, most of the cracks are generated on the surface of the aggregate and usually spread parallel to the surface of the aggregate. expansion, thereby avoiding the increase in the length of the crack; and even if cracking occurs, the cement slurry inside the shell will form a barb effect after solidification, and the concrete around the shell will be firmly hooked on the shell through the gap between the barrier arms 3, and Utilize the toughness of the shell made of metal to enhance the tensile strength of the concrete and prevent cracks from expanding.
对于流动性极差的混凝土，可在引料锥501的外表面上开设螺旋形的引料槽，引料槽的轴线与引料锥501的轴线同轴。利用引料槽将水泥浆带入到外壳内，保证外壳内部被填满。For concrete with extremely poor fluidity, a spiral-shaped feed groove can be set on the outer surface of the feed cone 501 , and the axis of the feed groove is coaxial with the axis of the feed cone 501 . Use the introduction groove to bring the cement slurry into the shell to ensure that the inside of the shell is filled.
以上所述的仅是本发明的实施例，方案中公知的具体结构及特性等常识在此未作过多描述。应当指出，对于本领域的技术人员来说，在不脱离本发明结构的前提下，还可以作出若干变形和改进，这些也应该视为本发明的保护范围，这些都不会影响本发明实施的效果和专利的实用性。本申请要求的保护范围应当以其权利要求的内容为准，说明书中的具体实施方式等记载可以用于解释权利要求的内容。What is described above is only an embodiment of the present invention, and common knowledge such as specific structures and characteristics known in the scheme are not described here too much. It should be pointed out that for those skilled in the art, under the premise of not departing from the structure of the present invention, several modifications and improvements can also be made, and these should also be regarded as the protection scope of the present invention, and these will not affect the implementation of the present invention. Effects and utility of patents. The scope of protection required by this application shall be based on the content of the claims, and the specific implementation methods and other records in the specification may be used to interpret the content of the claims.
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| WO2015013744A1 (en) * | 2013-07-29 | 2015-02-05 | Seels Technology Pty Ltd | Composite structural material and aggregate therefor |
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| CN106938894A (en) * | 2017-05-12 | 2017-07-11 | 上海市城市建设设计研究总院（集团）有限公司 | Ring pinniform steel fibre |
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| JPH1179806A (en) * | 1997-08-29 | 1999-03-23 | Nkk Corp | Steel fiber for reinforcing concrete |
| WO2015013744A1 (en) * | 2013-07-29 | 2015-02-05 | Seels Technology Pty Ltd | Composite structural material and aggregate therefor |
| CN105298023A (en) * | 2015-10-20 | 2016-02-03 | 重庆路投科技有限公司 | Two-way honeycomb horn-shaped concrete anti-cracking reinforced metal screen |
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