技术领域technical field
本发明涉及建筑材料领域，具体地，涉及一种混凝土及其制备方法。The invention relates to the field of building materials, in particular to concrete and a preparation method thereof.
背景技术Background technique
现有技术中混凝土的制备只是通过将水泥、沙子、石子、水和减水剂混合制备而成，这样的混凝土的优点是抗压强度高、取材容易、易成型、价格低廉、可与钢材结合制成各种承重构件，但是其致命弱点为抗拉强度低、脆性大、易开裂、韧性差，从而降低混凝土结构的承载能力，缩短使用寿命，成为各种灾难事故的隐患。特别是其抗冲击性能差，在冲击荷载作用下易于脆性断裂和脱落。因此，对于冲击荷载较大的桥梁、道路、堤坝等结构，设计出一种具有优异的抗冲击性能的混凝土是本领域急需解决的问题。The preparation of concrete in the prior art is only prepared by mixing cement, sand, stones, water and water reducing agent. The advantages of such concrete are high compressive strength, easy material acquisition, easy molding, low price, and can be combined with steel It is made into various load-bearing components, but its Achilles' heel is low tensile strength, high brittleness, easy cracking, and poor toughness, thereby reducing the bearing capacity of the concrete structure and shortening the service life, becoming a hidden danger of various disasters. In particular, its impact resistance is poor, and it is prone to brittle fracture and falling off under impact load. Therefore, for structures such as bridges, roads, and dams with relatively large impact loads, it is an urgent problem in this field to design a concrete with excellent impact resistance.
发明内容Contents of the invention
本发明的目的是为了克服现有技术中对于冲击荷载较大的桥梁、道路、堤坝等结构，混凝土的抗冲击性能差的缺陷，提供一种具有优异的抗冲击性能的混凝土及其制备方法。The purpose of the present invention is to overcome the defect of poor impact resistance of concrete for structures such as bridges, roads, and dams with relatively large impact loads in the prior art, and provide a kind of concrete with excellent impact resistance and a preparation method thereof.
为了实现上述目的，本发明提供了一种混凝土的制备方法，所述方法为将水泥、沙子、石子、水、减水剂、植物纤维和蛭石进行混合；In order to achieve the above object, the present invention provides a method for preparing concrete, which comprises mixing cement, sand, stones, water, water reducing agent, plant fiber and vermiculite;
其中，相对于1000kg的石子，所述水泥的用量为400-500kg，沙子的用量为300-450kg，所述水的用量为150-250kg、所述减水剂的用量为0.5-2kg，所述植物纤维的用量为10-20kg，所述蛭石的用量为50-80kg。Wherein, relative to 1000kg of stones, the amount of cement is 400-500kg, the amount of sand is 300-450kg, the amount of water is 150-250kg, and the amount of water reducer is 0.5-2kg. The dosage of the plant fiber is 10-20kg, and the dosage of the vermiculite is 50-80kg.
本发明还提供了一种混凝土，所述混凝土根据上述的制备方法所制备。The present invention also provides a concrete prepared according to the above-mentioned preparation method.
本发明在水泥、沙子、石子、水和减水剂的基础上添加植物纤维和蛭石从而增强其抗冲击性能，其中植物纤维和蛭石均是自然界易得的原料，尤其是植物纤维可以通过一些植物的秸秆加工而成，可以变废为宝。The invention adds plant fiber and vermiculite on the basis of cement, sand, stone, water and water reducer to enhance its impact resistance, wherein plant fiber and vermiculite are raw materials that are easy to get in nature, especially plant fiber can pass through The straw of some plants is processed, which can turn waste into treasure.
本发明的其他特征和优点将在随后的具体实施方式部分予以详细说明。Other features and advantages of the present invention will be described in detail in the following detailed description.
具体实施方式detailed description
以下对本发明的具体实施方式进行详细说明。应当理解的是，此处所描述的具体实施方式仅用于说明和解释本发明，并不用于限制本发明。Specific embodiments of the present invention will be described in detail below. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, not to limit the present invention.
本发明提供了一种混凝土的制备方法，其中，所述方法为将水泥、沙子、石子、水、减水剂、植物纤维和蛭石进行混合；其中，相对于1000kg的石子，所述水泥的用量为400-500kg，沙子的用量为300-450kg，所述水的用量为150-250kg、所述减水剂的用量为0.5-2kg，所述植物纤维的用量为10-20kg，所述蛭石的用量为50-80kg。The invention provides a method for preparing concrete, wherein, the method is to mix cement, sand, stones, water, water reducer, plant fiber and vermiculite; wherein, relative to 1000kg of stones, the amount of cement The dosage is 400-500kg, the dosage of sand is 300-450kg, the dosage of the water is 150-250kg, the dosage of the water reducing agent is 0.5-2kg, the dosage of the plant fiber is 10-20kg, the dosage of the leech The consumption of stone is 50-80kg.
本发明提供的方法制备的混凝土具有优异的抗冲击性能，抗冲击性能是通过抗压强度参数和劈裂强度参数体现，抗压强度参数和劈裂强度参数越高则抗冲击性能越优异。The concrete prepared by the method provided by the invention has excellent impact resistance, which is reflected by compressive strength parameters and splitting strength parameters, and the higher the compressive strength parameters and splitting strength parameters, the better the impact resistance.
在本发明中，对石子、沙子、植物纤维和蛭石的形状和大小没有特别的限定，为了提高制备的混凝土的抗冲击性能，优选地，所述石子的粒径为10-20mm，所述沙子为粒径为0.3-0.5mm的河沙，所述植物纤维的长度为40-50mm，所述植物纤维的长度方向的横截面为圆形且直径为1-2mm，所述蛭石粒径为0.1-0.4mm。In the present invention, the shape and size of stones, sand, plant fibers and vermiculite are not particularly limited, in order to improve the impact resistance of the prepared concrete, preferably, the particle diameter of the stones is 10-20mm, the The sand is river sand with a particle size of 0.3-0.5 mm, the length of the plant fiber is 40-50 mm, the cross-section of the plant fiber in the longitudinal direction is circular and the diameter is 1-2 mm, and the particle size of the vermiculite is 0.1-0.4mm.
在本发明中，对所述植物纤维没有特别的限定，可以为秸秆纤维也可以是通过树叶制备的纤维，为了节省成本，优选地，植物纤维为秸秆纤维，更优选地，所述植物纤维为稻草纤维。In the present invention, the plant fibers are not particularly limited, and may be straw fibers or fibers prepared from leaves. In order to save costs, preferably, the plant fibers are straw fibers, and more preferably, the plant fibers are straw fiber.
在本发明中，所述水泥可以使市售的任何一种硅酸盐水泥，为了使得制备的混凝土具有更优异的抗冲击性能，优选地，所述水泥为标号为42.5的硅酸盐水泥。In the present invention, the cement can be any commercially available Portland cement. In order to make the prepared concrete have better impact resistance, preferably, the cement is Portland cement with a label of 42.5.
在本发明中，所述减水剂可以是木质素磺酸盐类减水剂、多环芳香族盐类减水剂或水溶性树脂磺酸盐类减水剂，为了降低成本，优选地，所述减水剂可以是木质素磺酸盐类减水剂。In the present invention, the water reducer may be a lignosulfonate water reducer, a polycyclic aromatic salt water reducer or a water-soluble resin sulfonate water reducer. In order to reduce costs, preferably, The water reducer may be lignosulfonate water reducer.
在本发明中，对混合温度没有特别的限定，为了使混泥土具有更优异的抗冲击性能，优选地，所述混合的温度为20-30℃。In the present invention, the mixing temperature is not particularly limited. In order to make the concrete have better impact resistance, preferably, the mixing temperature is 20-30°C.
在本发明中，将水泥、沙子、石子、水、减水剂、植物纤维和蛭石进行混合中，对混料的顺序没有特别的限定，为了使混泥土具有更优异的抗冲击性能，优选地，混料的顺序为先将水泥、沙子、石子、水、减水剂和植物纤维进行混合，再添加蛭石进行混合。In the present invention, when mixing cement, sand, stones, water, water reducer, plant fiber and vermiculite, there is no special limitation on the order of mixing materials. In order to make the concrete have more excellent impact resistance, it is preferred Generally speaking, the order of mixing is to first mix cement, sand, stones, water, water reducing agent and plant fiber, and then add vermiculite for mixing.
本发明还提供了一种混凝土，其中，所述混凝土根据上述的制备方法所制备。The present invention also provides a concrete, wherein the concrete is prepared according to the above-mentioned preparation method.
以下将通过实施例对本发明进行详细描述。以下实施例中，抗压强度参数检测和劈裂强度参数的检测均通过SYE-2000型压力试验机进行，木质素磺酸盐类减水剂为嶅稞新材料科技(上海)有限公司的市售品，水泥为为安徽海螺水泥股份有限公司的标号为42.5的硅酸盐水泥。The present invention will be described in detail below by way of examples. In the following examples, the detection of the compressive strength parameters and the detection of the splitting strength parameters are all carried out by the SYE-2000 pressure testing machine, and the lignosulfonate water reducer is a commercial product of the Highland Barley New Material Technology (Shanghai) Co., Ltd. For sale, the cement is Portland cement with the label number 42.5 of Anhui Conch Cement Co., Ltd.
实施例1Example 1
25℃下，将粒径为10mm的石子1000kg，标号为42.5的硅酸盐水泥400kg，粒径为0.3mm的河沙300kg，水150kg、木质素磺酸盐类减水剂0.5kg和稻草纤维10kg混合并搅拌10min，再添加粒径为0.1mm蛭石50kg混合并搅拌200min制成混凝土制品A1，其中，稻草纤维的长度为40mm，同时长度方向的横截面为圆形且直径为1mm。然后分别经过3天、10天和30天对A1进行抗压强度检测和劈裂强度检测，检测结果见表1。At 25°C, mix 1000kg of stones with a particle size of 10mm, 400kg of portland cement with a label of 42.5, 300kg of river sand with a particle size of 0.3mm, 150kg of water, 0.5kg of lignosulfonate water reducer and straw fiber 10kg was mixed and stirred for 10 minutes, then 50kg of vermiculite with a particle size of 0.1mm was added and mixed and stirred for 200 minutes to make concrete product A1, wherein the length of the straw fiber was 40mm, and the cross-section in the longitudinal direction was circular with a diameter of 1mm. Then, after 3 days, 10 days and 30 days, A1 was tested for compressive strength and splitting strength, and the test results are shown in Table 1.
实施例2Example 2
25℃下，将粒径为20mm的石子1000kg，标号为42.5的硅酸盐水泥500kg，粒径为0.5mm的河沙450kg，水250kg、木质素磺酸盐类减水剂20kg混合并搅拌10min，再添加粒径为0.4mm蛭石80kg混合并搅拌200min制成混凝土制品A2，其中，稻草纤维的长度为50mm，同时长度方向的横截面为圆形且直径为2mm。然后分别经过3天、10天和30天对A2进行抗压强度检测和劈裂强度检测，检测结果见表1。At 25°C, mix 1000kg of stones with a particle size of 20mm, 500kg of Portland cement with a label of 42.5, 450kg of river sand with a particle size of 0.5mm, 250kg of water, and 20kg of lignosulfonate water reducer and stir for 10 minutes. , and then add 80kg of vermiculite with a particle size of 0.4mm, mix and stir for 200min to make concrete product A2, wherein the length of the straw fiber is 50mm, and the cross-section in the length direction is circular and the diameter is 2mm. Then, after 3 days, 10 days and 30 days, A2 was tested for compressive strength and splitting strength, and the test results are shown in Table 1.
实施例3Example 3
25℃下，将粒径为15mm的石子1000kg，标号为42.5的硅酸盐水泥450kg，粒径为0.4mm的河沙400kg，水200kg、木质素磺酸盐类减水剂1kg和稻草纤维15kg混合并搅拌10min，再添加粒径为0.2mm蛭石65kg混合并搅拌200min制成混凝土制品A3，其中，稻草纤维的长度为45mm，同时长度方向的横截面为圆形且直径为1.5mm。然后分别经过3天、10天和30天对A3进行抗压强度检测和劈裂强度检测，检测结果见表1。At 25°C, mix 1000kg of stones with a particle size of 15mm, 450kg of portland cement with a label of 42.5, 400kg of river sand with a particle size of 0.4mm, 200kg of water, 1kg of lignosulfonate water reducer and 15kg of straw fiber Mix and stir for 10 minutes, then add 65 kg of vermiculite with a particle size of 0.2 mm and mix and stir for 200 minutes to make concrete product A3, wherein the length of the straw fiber is 45 mm, and the cross-section in the length direction is circular with a diameter of 1.5 mm. Then, after 3 days, 10 days and 30 days, A3 was tested for compressive strength and splitting strength, and the test results are shown in Table 1.
对比例1Comparative example 1
按照实施例1的方法进行，所不同的是稻草纤维为0kg，制得混凝土制品B1，然后分别经过3天、10天和30天对B1进行抗压强度检测和劈裂强度检测，检测结果见表1。Carry out according to the method for embodiment 1, difference is that straw fiber is 0kg, makes concrete product B1, then carries out compressive strength detection and splitting strength detection to B1 through 3 days, 10 days and 30 days respectively, and test result sees Table 1.
对比例2Comparative example 2
按照实施例1的方法进行，所不同的是蛭石为0kg，制得混凝土制品B1，然后分别经过3天、10天和30天对B1进行抗压强度检测和劈裂强度检测，检测结果见表1。Carry out according to the method for embodiment 1, difference is that vermiculite is 0kg, makes concrete product B1, then through 3 days, 10 days and 30 days B1 is carried out compressive strength detection and splitting strength detection, and test result sees Table 1.
表1Table 1
通过表1可知，在水泥、沙子、石子、水和减水剂的基础上添加植物纤维和蛭石能够增强其抗压强度和劈裂强度，从而提高了其抗冲击性能。It can be seen from Table 1 that adding plant fiber and vermiculite on the basis of cement, sand, stone, water and water reducing agent can enhance its compressive strength and splitting strength, thereby improving its impact resistance.
以上详细描述了本发明的优选实施方式，但是，本发明并不限于上述实施方式中的具体细节，在本发明的技术构思范围内，可以对本发明的技术方案进行多种简单变型，这些简单变型均属于本发明的保护范围。The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solutions of the present invention. These simple modifications All belong to the protection scope of the present invention.
另外需要说明的是，在上述具体实施方式中所描述的各个具体技术特征，在不矛盾的情况下，可以通过任何合适的方式进行组合，为了避免不必要的重复，本发明对各种可能的组合方式不再另行说明。In addition, it should be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way if there is no contradiction. The combination method will not be described separately.
此外，本发明的各种不同的实施方式之间也可以进行任意组合，只要其不违背本发明的思想，其同样应当视为本发明所公开的内容。In addition, various combinations of different embodiments of the present invention can also be combined arbitrarily, as long as they do not violate the idea of the present invention, they should also be regarded as the disclosed content of the present invention.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410265963.4ACN104045281B (en) | 2014-06-13 | 2014-06-13 | Concrete and preparation method thereof |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410265963.4ACN104045281B (en) | 2014-06-13 | 2014-06-13 | Concrete and preparation method thereof |
| Publication Number | Publication Date |
|---|---|
| CN104045281A CN104045281A (en) | 2014-09-17 |
| CN104045281Btrue CN104045281B (en) | 2016-05-04 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410265963.4AActiveCN104045281B (en) | 2014-06-13 | 2014-06-13 | Concrete and preparation method thereof |
| Country | Link |
|---|---|
| CN (1) | CN104045281B (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101900849B1 (en)* | 2018-07-17 | 2018-09-20 | 전일랑 | Building panel and method of manufacturing building panel |
| US11851371B2 (en)* | 2020-07-29 | 2023-12-26 | University Of Louisville Research Foundation, Inc. | Biomass waste materials as a set-retardation agent in cement or concrete |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1260335A (en)* | 1999-12-31 | 2000-07-19 | 丁鸿生 | Light-weight heat-insulating concrete |
| CN1882751A (en)* | 2003-09-15 | 2006-12-20 | 圣戈班建筑材料股份有限公司 | Plate-shaped cementitious product and production method |
| CN102199044A (en)* | 2011-03-07 | 2011-09-28 | 同济大学 | Composite fiber reinforced foam concrete and preparation method thereof |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100645546B1 (en)* | 2006-02-01 | 2006-11-15 | (주) 선엔지니어링종합건축사사무소 | Cracking Reduction Method of Foundation Mass Concrete by Combination of Limestone Fine Powder and Chemical Admixture Types |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1260335A (en)* | 1999-12-31 | 2000-07-19 | 丁鸿生 | Light-weight heat-insulating concrete |
| CN1882751A (en)* | 2003-09-15 | 2006-12-20 | 圣戈班建筑材料股份有限公司 | Plate-shaped cementitious product and production method |
| CN102199044A (en)* | 2011-03-07 | 2011-09-28 | 同济大学 | Composite fiber reinforced foam concrete and preparation method thereof |
| Title |
|---|
| 稻草纤维混凝土性能研究;李超飞等;《混凝土》;20131027;第30页第2栏倒数第2-5段，第31页第1栏第1段、第32段第1栏第1段* |
| Publication number | Publication date |
|---|---|
| CN104045281A (en) | 2014-09-17 |
| Publication | Publication Date | Title |
|---|---|---|
| CN104030635B (en) | Concrete and preparation method thereof | |
| CN102850011B (en) | A kind of process method of using iron tailings to prepare active powder concrete | |
| Arivumangai et al. | Strength and durability properties of granite powder concrete | |
| Mujedu et al. | The use of corn cob ash and saw dust ash as cement replacement in concrete works | |
| CN103043985B (en) | Titanium gypsum composite binding material and preparation method thereof | |
| CN103964787B (en) | A kind of high volume mixing steel fiber reinforced concrete and preparation method | |
| CN106746818B (en) | A kind of concrete admixture, preparation method and the concrete containing the admixture | |
| CN103253911B (en) | Ocean-engineering anti-erosion cement-based composite material | |
| CN105503065A (en) | Novel compound electric pole | |
| CN108178591A (en) | A kind of air entrained concrete of high-strength light and preparation method thereof | |
| CN104030636B (en) | Concrete and preparation method thereof | |
| CN106186958B (en) | Recycled micro-powder lightweight aggregate high-strength concrete and preparation method thereof | |
| CN104045281B (en) | Concrete and preparation method thereof | |
| Yierlapalli et al. | Effect of ambient curing periods on the mechanical properties of geopolymer concrete prepared with three mineral admixtures and glass fibers | |
| CN103979855B (en) | A kind of uvioresistant concrete and preparation method thereof | |
| Jothilingam et al. | Feasibility, compressive strength and utilization of redmud in geopolymer concrete for sustainable constructions | |
| Bheel et al. | Self-compacting concrete blended with fly ash and ground granulated blast furnace slag | |
| CN109734377B (en) | Energy-saving environment-friendly building material and preparation method thereof | |
| CN103342526A (en) | Concrete prepared from steel slag powder | |
| CN105367017B (en) | A kind of shaft tower for transmission line of electricity | |
| CN107986708A (en) | A kind of Desert Sand steel-PVA Hybrid Fibers Reinforced High Performance Concretes | |
| CN108083721A (en) | A kind of Desert Sand steel fibre high performance concrete | |
| CN108083729A (en) | A kind of concrete being combined by slag as aggregate and preparation method thereof | |
| Pai et al. | Development of self compacting concrete with various mineral admixtures | |
| CN103964758B (en) | One is mixed waste and used rubber tyre particle concrete and preparation method thereof |
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |