CN104961400A - Concrete - Google Patents
Concrete Download PDFInfo
- Publication number
- CN104961400A CN104961400A CN201510373695.2A CN201510373695A CN104961400A CN 104961400 A CN104961400 A CN 104961400A CN 201510373695 A CN201510373695 A CN 201510373695A CN 104961400 A CN104961400 A CN 104961400A
- Authority
- CN
- China
- Prior art keywords
- parts
- concrete
- water
- sand
- toughener
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
The invention discloses concrete. The concrete is characterized by consisting of, by weight, 400-600 parts of cement, 150-300 parts of medium sand, 100-200 parts of fine aggregate sand, 100-200 parts of coarse aggregate sand, 5-10 parts of reinforcing agent and 150-200 parts of water. It is ensured that the components of the concrete play better synergistic effect by determining the content ranges of the components, so that the concrete simultaneously has the advantages of being seepage-proof and water-reducing and being resistant to impact force, abrasion, freezing and crack, the multi-aspect performance of the concrete is remarkably improved, and the concrete has the advantages of better crack resistance, impact force resistance, water-proof performance, excellent slump, construction performance and the like.
Description
Technical field
The invention belongs to technical field of concrete, be specifically related to a kind of concrete with resistance to cleavage.
Background technology
Concrete is one of contemporary topmost civil engineering material, and it is by gelling material, and particulate state is gathered materials (also referred to as aggregate), water, and the admixture added if desired and adulterant are prepared, by a certain percentage through uniform stirring, closely knit shaping, the artificial stone material of one of maintenance sclerosis.Concrete has abundant raw material, cheap, the simple feature of production technique, thus makes its consumption increasing.Simultaneously also to have ultimate compression strength high for concrete, good endurance, the features such as strength grade wide ranges.These features make its use range very extensive, and not only using in various civil engineering work, is exactly shipbuilding, mechanical industry, the exploitation of ocean, geothermal engineering etc., and concrete is also important material.Existing concrete, its problem of Cracking is a difficulty being difficult to greatly capture all the time, and concrete plastic shrinkage is one of major reason causing early crack, when the moisture velocity of evaporation in concrete exceedes its bleeding speed, and the concrete strength on nearly surface is not enough to again opposing when being restricted caused stress because shrinking, and will produce cracking phenomena.Therefore, research one can solve problem of Cracking, and the concrete that can improve again various aspects of performance is extremely necessary.
Summary of the invention
For problems of the prior art, the invention provides a kind of concrete of resistance to cleavage excellence.
The present invention is realized by the following technical programs:
Described a kind of concrete, is characterized in that being made up of the component of following parts by weight: cement 400-600 part, medium sand 150-300 part, fine aggregate sand 100-200 part, coarse aggregate sand 100-200 part, toughener 5-10 part, water 150-200 part.
Described a kind of concrete, is characterized in that being made up of the component of following parts by weight: cement 450-550 part, medium sand 200-250 part, fine aggregate sand 120-180 part, coarse aggregate sand 120-180 part, toughener 6-9 part, water 160-180 part.
Described a kind of concrete, is characterized in that being made up of the component of following parts by weight: cement 500 parts, medium sand 230 parts, fine aggregate sand 160 parts, coarse aggregate sand 160 parts, toughener 7 parts, 170 parts, water.
Described a kind of concrete, it is characterized in that described toughener is made up of the component of following parts by weight: Virahol 6-8 part, trolamine 4-10 part, sodium hydroxide 2-3 part, dextrin 2-3 part, tri-n-butyl 3-7 part, polypropylene fibre 8-15 part, basalt fibre 2-8 part, high efficiency water reducing agent 15-25 part, organosilicon toughener 5-9 part.
Described a kind of concrete, is characterized in that the weight ratio of described polypropylene fibre and basalt fibre is 1:0.1-2.
Described a kind of concrete, it is characterized in that described high efficiency water reducing agent is by naphthalene water reducer with sulfamate water reducer is composite forms, compound proportion is 1:0.3-0.8.
Described a kind of concrete, is characterized in that the compound proportion of described naphthalene water reducer and sulfamate water reducer is 1:0.5.
Described a kind of concrete, is characterized in that the particle diameter of described fine aggregate sand is being less than 4.50mm.
Described a kind of concrete, is characterized in that the particle diameter of described coarse aggregate stone is between 4.50mm-5.00mm.
Wherein, Virahol, trolamine is with the use of improving concrete serviceability and state, improve concrete later strength, the dextrin added in concrete can generate unstable complex compound and suppress tricalcium silicate aquation and the temporary transient hydrated cementitious process that delayed with the calcium hydroxide in cement, to suppression concrete slump loss, there is extraordinary effect simultaneously, also adjustable, control slump loss, stop concrete disintegration, concrete is made to keep good mobility and pumpability within the required time period, especially under hot weather high atmospheric temperature concrete construction and casting of concrete in mass shaping time delaying time of coagulation (initial set and final set), hydration heat can also be made to discharge slow down simultaneously, be conducive to dissipate heat and reduce temperature difference between inside and outside concrete, avoid producing thermal cracking, concrete compaction rate can be significantly improved thus improve concrete weather resistance.
Polypropylene fibre and basalt fibre is added in concrete, effectively can change the structure of inside concrete, the support system of stable homogeneous is formed at inside concrete, polypropylene fibre and basalt fibre composite, effectively can improve concrete anti-adaptability to changes and tensile strength, thus delay or stop the generation in crack, the microfracture that inside concrete produces simultaneously is subject to the stop of fiber, reduce point stresses, effectively absorb the energy that string stress produces, thus improve concrete splitting resistance.By naphthalene water reducer and the composite use of sulfamate water reducer, the concrete slump loss being used alone naphthalene water reducer can be eliminated large, be difficult to the problem meeting Practical Project construction requirement, sulfamate water reducer, water-reducing effect is good, little volume can obtain high water reducing rate, concrete early strength can be improved, also significantly later strength can be improved, concrete can be made to keep good mobility within a certain period of time, slump-loss is controlled, but single use sulfamate water reducer can increase concrete initial stage bleeding, concrete delamination also can be caused when volume is higher to emanate, by both are composite according to suitable ratio, the shortcoming of the bad and easy bleeding of sulfamate water reducer of naphthalene water reducer slump retaining can be overcome simultaneously, not only initial slump can be made to meet the demands but also can control slump loss.
A kind of concrete of the present invention, by the determination of each component concentration ranges, guarantee the synergistic effect that each component reaches more excellent, make concrete have the effect of water-impervious, anti-impact force, wear-resisting, diminishing, freeze proof, cracking resistance simultaneously, the many-sided performance of concrete can be significantly improved, make concrete have good splitting resistance, anti-impact force, water resistance, the excellent advantage such as the slump, workability.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, and provides embodiment.
Formula 1:
A kind of concrete, is made up of the component of following parts by weight: cement 500 parts, medium sand 230 parts, fine aggregate sand 160 parts, coarse aggregate sand 160 parts, toughener 7 parts, 170 parts, water.
Wherein, toughener is made up of the component of following parts by weight: Virahol 7 parts, trolamine 8 parts, 2 parts, sodium hydroxide, 3 parts, dextrin, tri-n-butyl 5 parts, polypropylene fibre 12 parts, basalt fibre 6 parts, high efficiency water reducing agent 20 parts, organosilicon toughener 7 parts.High efficiency water reducing agent is by naphthalene water reducer and sulfamate water reducer is composite forms, and compound proportion is 1:0.5.
Formula 2:
A kind of concrete, is made up of the component of following parts by weight: cement 500 parts, medium sand 230 parts, fine aggregate sand 160 parts, coarse aggregate sand 160 parts, toughener 7 parts, 170 parts, water.
Wherein, toughener is made up of the component of following parts by weight: Virahol 6 parts, trolamine 10 parts, 2 parts, sodium hydroxide, 3 parts, dextrin, tri-n-butyl 4 parts, polypropylene fibre 15 parts, basalt fibre 2 parts, high efficiency water reducing agent 25 parts, organosilicon toughener 5 parts.High efficiency water reducing agent is by naphthalene water reducer and sulfamate water reducer is composite forms, and compound proportion is 1:0.3.
Formula 3:
A kind of concrete, is made up of the component of following parts by weight: cement 500 parts, medium sand 230 parts, fine aggregate sand 160 parts, coarse aggregate sand 160 parts, toughener 7 parts, 170 parts, water.
Wherein, toughener is made up of the component of following parts by weight: Virahol 8 parts, trolamine 5 parts, 3 parts, sodium hydroxide, 2 parts, dextrin, tri-n-butyl 6 parts, polypropylene fibre 10 parts, basalt fibre 4 parts, high efficiency water reducing agent 23 parts, organosilicon toughener 8 parts.High efficiency water reducing agent is by naphthalene water reducer and sulfamate water reducer is composite forms, and compound proportion is 1:0.8.
Formula 4:
A kind of concrete, is made up of the component of following parts by weight: cement 400 parts, medium sand 300 parts, fine aggregate sand 100 parts, coarse aggregate sand 200 parts, toughener 5 parts, 200 parts, water.
Wherein, toughener is made up of the component of following parts by weight: Virahol 7 parts, trolamine 8 parts, 2 parts, sodium hydroxide, 3 parts, dextrin, tri-n-butyl 5 parts, polypropylene fibre 12 parts, basalt fibre 6 parts, high efficiency water reducing agent 20 parts, organosilicon toughener 7 parts.High efficiency water reducing agent is by naphthalene water reducer and sulfamate water reducer is composite forms, and compound proportion is 1:0.5.
Formula 5:
A kind of concrete, is made up of the component of following parts by weight: cement 450 parts, medium sand 250 parts, fine aggregate sand 120 parts, coarse aggregate sand 180 parts, toughener 6 parts, 180 parts, water.
Wherein, toughener is made up of the component of following parts by weight: Virahol 7 parts, trolamine 8 parts, 2 parts, sodium hydroxide, 3 parts, dextrin, tri-n-butyl 5 parts, polypropylene fibre 12 parts, basalt fibre 6 parts, high efficiency water reducing agent 20 parts, organosilicon toughener 7 parts.High efficiency water reducing agent is by naphthalene water reducer and sulfamate water reducer is composite forms, and compound proportion is 1:0.5.
Formula 6: a kind of concrete, is made up of the component of following parts by weight: cement 500 parts, medium sand 230 parts, fine aggregate sand 160 parts, coarse aggregate sand 160 parts, 170 parts, water.
Reference substance: select commercially available C30 concrete in contrast.
Test example
Under the same terms, the concrete that formula 1-6 obtains is carried out the test of the slump, divergence, workability, ultimate compression strength, test result is in table 1:
Table 1: test result
As shown in Table 1: after mixing toughener, its slump, divergence, workability are all better than blank product, and its each phase ultimate compression strength is all higher than contrast.
Impact test
Impact test method adopts blow bending test method, and the sample dimensions of blow bending test is 100mm × 100mm × 400mm, often organizes 6 test specimens.Free-falling hammer is a solid cylinder, cross-sectional diameter 30mm, and tup portion is sphere, the heavy 1.4kg of hammer.The shock height of free-falling hammer is 400mm.Beam two ends are freely-supported, clear span 340mm.Drop hammer and do the movement of falling object in steel hollow cylinder, cylinder is used for control and drops hammer height of drop simultaneously.Every Secondary Shocks is from free-falling of dropping hammer, completely static for terminating to dropping hammer.So repeated multiple timesly to carry out, until test specimen destroys.Result evaluation method: (1) incipient crack, beam is from leakless to generation microfracture; (2) destroy, observe crack by magnifying glass and whether be through to the destruction that total cross section judges beam.Concrete shock resistance is in table 2:
Table 2: shock resistance
Water-intake rate is tested
Adopt the test specimen of 100mm × 100mm × 400mm, maintenance, after 2 days, is immersed the sodium chloride aqueous solution of 5%, is tested its water-intake rate, depth of penetration after 3 days.Test result is see table 3:
Table 3: water-intake rate and depth of penetration test result
Claims (9)
1. a concrete, is characterized in that being made up of the component of following parts by weight: cement 400-600 part, medium sand 150-300 part, fine aggregate sand 100-200 part, coarse aggregate sand 100-200 part, toughener 5-10 part, water 150-200 part.
2. a kind of concrete according to claim 1, is characterized in that being made up of the component of following parts by weight: cement 450-550 part, medium sand 200-250 part, fine aggregate sand 120-180 part, coarse aggregate sand 120-180 part, toughener 6-9 part, water 160-180 part.
3. a kind of concrete according to claim 1, is characterized in that being made up of the component of following parts by weight: cement 500 parts, medium sand 230 parts, fine aggregate sand 160 parts, coarse aggregate sand 160 parts, toughener 7 parts, 170 parts, water.
4. a kind of concrete according to claim 1 or 2 or 3, it is characterized in that described toughener is made up of the component of following parts by weight: Virahol 6-8 part, trolamine 4-10 part, sodium hydroxide 2-3 part, dextrin 2-3 part, tri-n-butyl 3-7 part, polypropylene fibre 8-15 part, basalt fibre 2-8 part, high efficiency water reducing agent 15-25 part, organosilicon toughener 5-9 part.
5. a kind of concrete according to claim 4, is characterized in that the weight ratio of described polypropylene fibre and basalt fibre is 1:0.1-2.
6. a kind of concrete according to claim 4, it is characterized in that described high efficiency water reducing agent is by naphthalene water reducer with sulfamate water reducer is composite forms, compound proportion is 1:0.3-0.8.
7. a kind of concrete according to claim 6, is characterized in that the compound proportion of described naphthalene water reducer and sulfamate water reducer is 1:0.5.
8. a kind of concrete according to claim 1, is characterized in that the particle diameter of described fine aggregate sand is being less than 4.50mm.
9. a kind of concrete according to claim 1, is characterized in that the particle diameter of described coarse aggregate stone is between 4.50mm-5.00mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510373695.2A CN104961400A (en) | 2015-06-29 | 2015-06-29 | Concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510373695.2A CN104961400A (en) | 2015-06-29 | 2015-06-29 | Concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104961400A true CN104961400A (en) | 2015-10-07 |
Family
ID=54215530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510373695.2A Pending CN104961400A (en) | 2015-06-29 | 2015-06-29 | Concrete |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104961400A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108046641A (en) * | 2018-01-17 | 2018-05-18 | 石家庄学院 | A kind of compound concrete anti-corrosive rust inhibitor and preparation method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1858018A (en) * | 2006-06-01 | 2006-11-08 | 上海交通大学 | Early strength micro expansion steel fiber road concrete |
| CN102153313A (en) * | 2011-04-21 | 2011-08-17 | 江苏锋泰建材科技有限公司 | Concrete complex additive |
| CN102432255A (en) * | 2011-09-29 | 2012-05-02 | 成都嘉新科技集团有限公司 | Cement-based self-leveling mortar |
| CN104108918A (en) * | 2014-06-19 | 2014-10-22 | 广东省建筑科学研究院 | High performance cement-base self-leveling mortar |
| CN104496320A (en) * | 2014-12-18 | 2015-04-08 | 南京工业大学 | Cement-based self-leveling mortar and preparation method thereof |
-
2015
- 2015-06-29 CN CN201510373695.2A patent/CN104961400A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1858018A (en) * | 2006-06-01 | 2006-11-08 | 上海交通大学 | Early strength micro expansion steel fiber road concrete |
| CN102153313A (en) * | 2011-04-21 | 2011-08-17 | 江苏锋泰建材科技有限公司 | Concrete complex additive |
| CN102432255A (en) * | 2011-09-29 | 2012-05-02 | 成都嘉新科技集团有限公司 | Cement-based self-leveling mortar |
| CN104108918A (en) * | 2014-06-19 | 2014-10-22 | 广东省建筑科学研究院 | High performance cement-base self-leveling mortar |
| CN104496320A (en) * | 2014-12-18 | 2015-04-08 | 南京工业大学 | Cement-based self-leveling mortar and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 康秋波等: "玄武岩/聚丙烯纤维水泥砂浆的力学性能与抗裂性", 《材料导报B:研究篇》 * |
| 郑遵畅: "玄武岩纤维活性粉末混凝土基本性能试验研究", 《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108046641A (en) * | 2018-01-17 | 2018-05-18 | 石家庄学院 | A kind of compound concrete anti-corrosive rust inhibitor and preparation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Yang et al. | The physical and chemical impact of manufactured sand as a partial replacement material in Ultra-High Performance Concrete (UHPC) | |
| CN104030642B (en) | A kind of fibrous concrete | |
| CN102898107B (en) | Concrete healant | |
| CN103896527A (en) | Lightweight high-strength cement based composite material | |
| CN107032695B (en) | Steel fiber self-compacting concrete, preparation method thereof and prefabricated part | |
| CN103922662A (en) | Ultra-high performance cement base composite material | |
| CN104961399A (en) | Crack-proof concrete | |
| CN110627470A (en) | Double-network reinforced composite quick-drying gel cement material and preparation method thereof | |
| CN106116207A (en) | A kind of concrete light wall panel composite high-early strength water reducer | |
| CN106186959B (en) | A kind of regenerative micro powder mortar and preparation method thereof | |
| CN106116218B (en) | A kind of Compositional type concrete light wall panel early strength water-reducing agent | |
| CN106186958B (en) | A kind of regenerative micro powder lightweight aggregate high-strength concrete and preparation method thereof | |
| CN102659374A (en) | Active synergist for concrete and cement products | |
| Zhang et al. | Mechanical properties and conversion relations of strength indexes for stone/sand-lightweight aggregate concrete | |
| Poznyak et al. | Properties of self-compacting concrete with basalt fiber | |
| CN105330211A (en) | High-strength self-compacting concrete | |
| CN104961400A (en) | Concrete | |
| Wen-yu et al. | Study on reactive powder concrete used in the sidewalk system of the Qinghai-Tibet railway bridge | |
| CN104973818A (en) | Anti-crack reinforcing agent for concrete | |
| CN105347745A (en) | Novel high-strength self-compacting concrete | |
| Fan et al. | Experimental research on the freeze-thaw resistance of basalt fiber reinforced concrete | |
| CN106587894B (en) | A kind of cement steel wire net rack thermal-insulating board of magnesia salt cementitious material foaming | |
| CN112125612B (en) | Low-temperature-difference large-volume concrete suitable for elephant trunk construction and preparation process thereof | |
| CN104944830A (en) | Anti-crack additive of concrete | |
| Kakasor et al. | Geopolymer concrete: Properties, durability and applications |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151007 |
|
| RJ01 | Rejection of invention patent application after publication |