CN111233400A - Three-level gravel-mixed low-heat cement concrete for harbor engineering - Google Patents
Three-level gravel-mixed low-heat cement concrete for harbor engineering Download PDFInfo
- Publication number
- CN111233400A CN111233400A CN202010117027.4A CN202010117027A CN111233400A CN 111233400 A CN111233400 A CN 111233400A CN 202010117027 A CN202010117027 A CN 202010117027A CN 111233400 A CN111233400 A CN 111233400A
- Authority
- CN
- China
- Prior art keywords
- low
- concrete
- crushed stone
- heat cement
- level
- 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
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
- 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
- C04B28/04—Portland cements
-
- 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
- C04B2111/00034—Physico-chemical characteristics of the mixtures
- C04B2111/00146—Sprayable or pumpable mixtures
-
- 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
- C04B2111/20—Resistance against chemical, physical or biological attack
-
- 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
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/24—Sea water resistance
-
- 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
- C04B2111/90—Electrical properties
- C04B2111/94—Electrically conducting materials
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
Abstract
The invention relates to a three-level crushed stone low-heat cement concrete for harbor engineering, which comprises the following raw materials in parts by weight: (240-260), (70-90), (60-8), (200-270), (560-640), (200-270), (700-800), (140-150), (7-9). The invention adopts the reasonable matching of the three-level crushed stones, so that the concrete reaches the maximum volume weight, the compactness is improved, the anti-erosion capability is enhanced, the cement consumption is reduced, the temperature shrinkage is reduced, meanwhile, the hydration temperature of the concrete is reduced by adopting low-temperature cement, and the problem of temperature control and crack resistance of a large-volume structure is solved.
Description
Technical Field
The invention belongs to the technical field of concrete preparation, and particularly relates to a three-level gravel-mixed low-heat cement concrete for harbor engineering.
Background
The existing seaport engineering pumped concrete mostly adopts continuous graded (5-25 mm) concrete, and because the aggregate particle size of the graded pumped concrete is small, the specific surface area and the void ratio of the coarse aggregate are relatively large, and more mortar is needed to fill the gaps among the coarse aggregates; meanwhile, in order to obtain better workability and fluidity, the use amount of the cementing material is higher, the cementing material is not economical, the hydration heat of the ordinary cement concrete is higher, the casting structure is easy to generate temperature cracks, and the harbor engineering concrete is mostly large-volume concrete with large construction area, the hydration heat in the concrete is not easy to dissipate, and the temperature cracks and the self-shrinkage cracks are easy to generate. Therefore, in order to adapt to the pouring of marine concrete, the invention provides the three-level broken stone low-heat cement concrete for the harbor engineering.
The particle size distribution of coarse aggregate of the three-level gravel-mixed low-heat cement concrete is within three ranges of 5-10mm, 10-20mm and 16-31.5mm, and compared with common cement concrete, the three-level gravel-mixed low-heat cement concrete can not only enable the concrete to reach the maximum volume weight, improve the compactness and effectively reduce the temperature rise of the concrete under the condition of the same water-cement ratio, thereby reducing the temperature difference shrinkage, ensuring the construction quality, but also has good working performance and is easy to pump; meanwhile, the low-heat cement has the characteristics of low hydration heat, high strength, high durability, low dry shrinkage, good volume stability and the like, the hydration temperature of the concrete can be reduced to the maximum extent by matching the low-heat cement, the factors such as construction, quality and the like are comprehensively considered, and the three-level crushed stone low-heat cement concrete has the performances of low hydration heat, high strength, high compactness, high chloride ion penetration resistance and the like, and can meet the requirements of properties such as crack resistance, seepage resistance and the like of the concrete for the harbor engineering.
Disclosure of Invention
The invention aims to provide a three-level crushed stone low-heat cement concrete for harbor engineering, wherein the highest 28d compressive strength of the concrete obtained by the invention can reach 52MPa, the highest 56d compressive strength can reach 65MPa, the lowest 56d electric flux can reach 750C, the lowest 90d electric flux can reach 510C, and the volume weight is controlled to be 2400kg/m3. Has high strength and high chlorine ion permeation resistance, and is suitable for large-scale seepage-proofing structures of harbor engineering.
In order to achieve the purpose, the invention provides the following technical scheme:
the three-level crushed stone low-heat cement concrete for the harbor engineering comprises the following raw materials in parts by weight: (240-260), (70-90), (60-8), (200-270), (560-640), (200-270), (700-800), (140-150), (7-9).
In the invention, the low-heat cement is low-heat portland cement with the strength of 42.5.
In the invention, the fly ash is F II type fly ash which accords with GBT1596-2017 fly ash for cement and concrete.
In the invention, the mineral powder is S95 grade mineral powder which meets GBT 18046-2017 'granulated blast furnace slag powder used in cement, mortar and concrete'.
In the invention, the crushed stone is a II-type crushed stone which meets GBT14685-2011 construction pebbles and crushed stones, and the particle sizes of the II-type crushed stone are 5-10mm, 10-20mm and 16-31.5mm in continuous gradation respectively.
In the invention, the river sand is medium sand which accords with GB-T14684-2011 construction sand, and belongs to the II area in a grading way.
According to the invention, the water reducing agent is a polycarboxylic acid water reducing agent, the water reducing rate is 23%, and the water is water for mixing common concrete.
The invention relates to a preparation method of a three-level crushed stone low-heat cement concrete for harbor engineering, which comprises the following specific steps:
(1) firstly, weighing low-heat cement, fly ash, mineral powder, three-level crushed stone, river sand, water and a water reducing agent according to parts by weight;
(2) pouring the low-heat cement, the fly ash, the mineral powder, the three-level crushed stone and the river sand weighed in the step (1) into a stirring pot, and stirring for 2min to uniformly mix the materials;
(3) uniformly adding the weighed water reducing agent and water into the product obtained in the step (2) in the stirring process, continuously stirring for 2min, and uniformly stirring to obtain the three-stage gravel-prepared low-heat cement concrete;
(4) and (3) preparing the molded three-level gravel low-heat cement concrete, demolding after 24 hours, and then performing standard curing for 28 days.
Compared with other common cement concrete, the invention has the beneficial effects that:
(1) the crushed stone is prepared by mixing the crushed stone with the size of three levels of 5-10mm, 10-20mm and 16-31.5mm, so that the maximum volume weight of the concrete can be achieved, the compactness is enhanced, the chloride ion permeability resistance is improved, the using amount of a cementing material can be reduced, the hydration heat and the temperature shrinkage are reduced, and the method is suitable for various seepage-proofing structures of harbor engineering.
(2) The low-heat cement has the characteristics of low hydration heat, high strength, high durability, low dry shrinkage, good volume stability and the like, and the use of the low-heat cement can reduce the hydration temperature of concrete to the maximum extent and is beneficial to controlling the temperature of large-volume buildings.
(3) The concrete has the advantages of optimal aggregate gradation, good working performance, convenient construction, high later strength, good durability and strong seawater erosion resistance by combining a pumping technology and the three-level crushed stone low-heat cement concrete, and meets various performance requirements of the seaport engineering on the concrete.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The low-heat cement adopts Kudzuvine dam P.LH42.5 low-heat cement, and the 28d compressive strength is 46.1 MPa; the fly ash is F II grade fly ash of a Hainan east power plant, the fineness is 15 percent, the water demand ratio is 97 percent, and the 28d activity is 77 percent; the mineral powder is S95 grade mineral powder produced by Hainanxi novel material Co Ltd, and the specific surface area is 430kg/m2Density 2.85g/m328d Activity 98%; the third-level crushed stone is Hainan iron furnace steel crushed stone, the particle size is 5-10mm, 10-20mm and 16-31.5mm respectively, and the crushing values are 10.8%, 10% and 10.3% respectively; the river sand adopts Hainan Lingshui river sand with the fineness of 2.7, the mud content of 1.4 percent and the secondary grade middle sand in the area II; the water reducing agent is a polycarboxylic acid water reducing agent, the solid content is 9.1 percent, and the water reducing rate is 23 percent; the water is tap water.
A three-level broken stone-prepared low-heat cement concrete for harbor engineering comprises the following steps:
(1) weighing the raw materials according to a proportion, wherein the mass of each raw material is calculated according to the single formula dosage: 240kg of low-heat cement, 70kg of fly ash, 80kg of mineral powder, 220kg of third-level matched crushed stone, 640kg of sand, 220kg of river sand, 140kg of water and 7kg of additive, wherein the third-level matched crushed stone is 5-10mm, 10-20mm and 16-31.5mm respectively;
(2) weighing the cement, the fly ash, the mineral powder, the three-level crushed stone and the river sand in the materials, pouring the weighed materials into a stirrer, and stirring for 2min to uniformly mix the materials;
(3) uniformly adding the weighed water reducing agent and water into the product obtained in the step (2) in the stirring process, continuously stirring for 2min, and uniformly stirring to obtain the three-stage gravel-prepared low-heat cement concrete;
(4) the prepared three-level crushed stone-prepared low-heat cement concrete is used for pouring a certain seaport engineering bottom plate, and the pouring size is that the length, the width and the height are =21m multiplied by 15m multiplied by 1.35 m.
Example 2
The low-heat cement adopts Kudzuvine dam P.LH42.5 low-heat cement, and the 28d compressive strength is 46.1 MPa; the fly ash is F II grade fly ash of a Hainan east power plant, the fineness is 15 percent, the water demand ratio is 97 percent, and the 28d activity is 77 percent; the mineral powder is S95 grade mineral powder produced by Hainanxi novel material Co Ltd, and the specific surface area is 430kg/m2Density 2.85g/m328d Activity 98%; the third-level crushed stone is Hainan iron furnace steel crushed stone, the particle size is 5-10mm, 10-20mm and 16-31.5mm respectively, and the crushing values are 10.8%, 10% and 10.3% respectively; the river sand adopts Hainan Lingshui river sand with the fineness of 2.7, the mud content of 1.4 percent and the secondary grade middle sand in the area II; the water reducing agent is a polycarboxylic acid water reducing agent, the solid content is 9.1 percent, and the water reducing rate is 23 percent; the water is tap water.
(1) Weighing the raw materials according to a proportion, wherein the mass of each raw material is calculated according to the single formula dosage: 250kg of low-heat cement, 80kg of fly ash, 90kg of mineral powder, 5-10mm, 10-20mm and 16-31.5mm of third-level matched crushed stone, 230kg, 620kg and 230kg of river sand, 780kg of water and 8kg of additives;
(2) weighing the cement, the fly ash, the mineral powder, the three-level crushed stone and the river sand in the materials, pouring the weighed materials into a stirrer, and stirring for 2min to uniformly mix the materials;
(3) uniformly adding the weighed water reducing agent and water into the product obtained in the step (2) in the stirring process, continuously stirring for 2min, and uniformly stirring to obtain the three-stage gravel-prepared low-heat cement concrete;
(4) the prepared three-level crushed stone-prepared low-heat cement concrete is used for pouring a certain seaport engineering bottom plate, and the pouring size is that the length, the width and the height are =14.98m multiplied by 9.98m multiplied by 0.81 m.
Example 3
The low-heat cement adopts Kudzuvine dam P.LH42.5 low-heat cement, and the 28d compressive strength is 46.1 MPa; the fly ash is F II grade fly ash of a Hainan east power plant, the fineness is 15 percent, the water demand ratio is 97 percent, and the 28d activity is 77 percent; the mineral powder is S95 grade mineral powder produced by Hainanxi novel material Co Ltd, and the specific surface area is 430kg/m2Density 2.85g/m328d Activity 98%; the third-level crushed stone is Hainan iron furnace steel crushed stone, the particle size is 5-10mm, 10-20mm and 16-31.5mm respectively, and the crushing values are 10.8%, 10% and 10.3% respectively; river sandAdopting Hainan Lingshui river sand with the fineness of 2.7 and the mud content of 1.4 percent, and grading medium sand in a II area; the water reducing agent is a polycarboxylic acid water reducing agent, the solid content is 9.1 percent, and the water reducing rate is 23 percent; the water is tap water.
A three-level broken stone-prepared low-heat cement concrete for harbor engineering comprises the following steps:
(1) weighing the raw materials according to a proportion, wherein the mass of each raw material is calculated according to the single formula dosage: 260kg of low-heat cement, 90kg of fly ash, 60kg of mineral powder, 240kg of three-level crushed stone with the thickness of 5-10mm, 10-20mm and 16-31.5mm respectively, 600kg of crushed stone, 240kg of crushed sand, 760kg of river sand, 150kg of water and 9kg of additive;
(2) weighing the cement, the fly ash, the mineral powder, the three-level crushed stone and the river sand in the materials, pouring the weighed materials into a stirrer, and stirring for 2min to uniformly mix the materials;
(3) uniformly adding the weighed water reducing agent and water into the product obtained in the step (2) in the stirring process, continuously stirring for 2min, and uniformly stirring to obtain the three-stage gravel-prepared low-heat cement concrete;
(4) the prepared three-level crushed stone-prepared low-heat cement concrete is used for pouring a certain seaport engineering bottom plate, and the pouring size is that the length, the width and the height are =14.98m multiplied by 9.98m multiplied by 0.81.
The concrete performances of the examples are detected, and the results of the tests are shown in Table 1 with reference to GB/T50081 Standard test method for mechanical Properties of ordinary concrete, GB/T50080 Standard test method for Performance of ordinary concrete mixture and GB-T50082 Standard test method for Long-term Performance and durability of ordinary concrete:
TABLE 1 Performance test results
| Example 1 | Example 2 | Example 3 | |
| Slump constant | 180mm | 170mm | 180mm |
| 28d compressive strength | 46.2MPa | 50.5MPa | 52.0MPa |
| 56d compressive strength | 57.8MPa | 62.4MPa | 64.9MPa |
| 56d electric flux | 875C | 750C | 830C |
| 90d electric flux | 650C | 720C | 510C |
| Temperature peak value of upper surface of bottom plate | 54.8℃ | 47.0℃ | 47.2℃ |
| Temperature peak value of lower surface of bottom plate | 50.2℃ | 51.3℃ | 53.4℃ |
| Central temperature peak of bottom plate | 59.2℃ | 53.1℃ | 54.4℃ |
| Temperature peak value of side surface of bottom plate | 41.2℃ | 40.9℃ | 41.4℃ |
According to the detection result, the embodiment prepared by the invention can ensure that the 28d compressive strength is 45-52 MPa, the 56d compressive strength is 55-65 MPa, the 56d electric flux is 700-800C and the 90d electric flux is 500-700C, the working performance is good, the pouring entity has no obvious shrinkage crack, and the temperature control meets the specification requirement.
Claims (8)
1. The utility model provides a low hot cement concrete of rubble is joined in marriage to tertiary for harbour engineering which characterized in that: the raw materials comprise low-heat cement, fly ash, mineral powder, crushed stone of 5-10mm, crushed stone of 10-20mm, crushed stone of 16-31.5mm, river sand, water and a water reducing agent, wherein the cement comprises the following components in parts by weight: (240-260), (70-90), (60-8), (200-270), (560-640), (200-270), (700-800), (140-150), (7-9).
2. The three-level matched crushed stone low-heat cement concrete for harbour engineering according to claim 1, wherein the concrete comprises the following components in percentage by weight: the low-heat cement is low-heat portland cement with the strength of 42.5.
3. The three-level matched crushed stone low-heat cement concrete for harbour engineering according to claim 1, wherein the concrete comprises the following components in percentage by weight: the fly ash is F II type fly ash which accords with GBT1596 & 2017 fly ash for cement and concrete.
4. The three-level matched crushed stone low-heat cement concrete for harbour engineering according to claim 1, wherein the concrete comprises the following components in percentage by weight: the mineral powder is S95 grade mineral powder which meets GBT 18046-2017 granulated blast furnace slag powder used in cement, mortar and concrete.
5. The three-level matched crushed stone low-heat cement concrete for harbour engineering according to claim 1, wherein the concrete comprises the following components in percentage by weight: the crushed stone is II-type crushed stone which meets GBT14685-2011 construction pebbles and crushed stones, and the particle sizes of the II-type crushed stone are 5-10mm, 10-20mm and 16-31.5mm in continuous gradation.
6. The three-level crushed stone low-heat cement concrete for harbour engineering according to claim 1: the river sand is medium sand which accords with GB-T14684-2011 construction sand and belongs to the II area in a grading way.
7. The three-level matched crushed stone low-heat cement concrete for harbour engineering according to claim 1, wherein the concrete comprises the following components in percentage by weight: the water reducing agent is a polycarboxylic acid water reducing agent, the water reducing rate is 23%, and the water is water for mixing common concrete.
8. The method for preparing the tertiary crushed stone low-heat cement concrete for harbour engineering according to claim 1, wherein the method comprises the following steps: the method comprises the following specific steps:
(1) firstly, weighing low-heat cement, fly ash, mineral powder, three-level crushed stone, river sand, water and a water reducing agent according to parts by weight;
(2) pouring the low-heat cement, the fly ash, the mineral powder, the three-level crushed stone and the river sand weighed in the step (1) into a stirring pot, and stirring for 2min to uniformly mix the materials;
(3) uniformly adding the weighed water reducing agent and water into the product obtained in the step (2) in the stirring process, continuously stirring for 2min, and uniformly stirring to obtain the three-stage gravel-prepared low-heat cement concrete;
(4) and (3) preparing the molded three-level gravel low-heat cement concrete, demolding after 24 hours, and then performing standard curing for 28 days.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010117027.4A CN111233400A (en) | 2020-02-25 | 2020-02-25 | Three-level gravel-mixed low-heat cement concrete for harbor engineering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010117027.4A CN111233400A (en) | 2020-02-25 | 2020-02-25 | Three-level gravel-mixed low-heat cement concrete for harbor engineering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111233400A true CN111233400A (en) | 2020-06-05 |
Family
ID=70863471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010117027.4A Pending CN111233400A (en) | 2020-02-25 | 2020-02-25 | Three-level gravel-mixed low-heat cement concrete for harbor engineering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111233400A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112521173A (en) * | 2020-12-08 | 2021-03-19 | 中建西部建设湖南有限公司 | Limestone powder porous cement concrete material for dock chamber bottom plate drainage cushion and preparation method thereof |
| CN115974485A (en) * | 2022-12-29 | 2023-04-18 | 中建西部建设湖南有限公司 | Concrete and preparation method and application thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5531823A (en) * | 1995-02-06 | 1996-07-02 | Atomic Energy Of Canada Limited | Low-heat high-performance concrete |
| CN102241497A (en) * | 2011-06-01 | 2011-11-16 | 上海建工材料工程有限公司 | Concrete with ultra-large volume, high strength and low hydration heat |
| CN102276224A (en) * | 2011-07-22 | 2011-12-14 | 中交上海三航科学研究院有限公司 | Marine engineering self-compacting high-performance concrete and preparation method thereof |
| CN103288398A (en) * | 2013-05-15 | 2013-09-11 | 宁波市高等级公路建设指挥部 | High-performance machine-made sand marine concrete and preparation method thereof |
| CN103819158A (en) * | 2014-01-14 | 2014-05-28 | 苏州中材建设有限公司 | Preparation method of high-volume stable concrete |
| CN105541234A (en) * | 2016-01-19 | 2016-05-04 | 中国长江三峡集团公司 | Temperature control anti-cracking method for large-volume hydraulic concrete for super high arch dam |
| CN108083703A (en) * | 2017-12-28 | 2018-05-29 | 中交天津航道局有限公司 | A kind of mud knot Detritus construction concrete match ratio when preparation method |
| CN108529947A (en) * | 2017-03-06 | 2018-09-14 | 北京城建银龙混凝土有限公司 | A kind of concrete inhibiting distress in concrete |
-
2020
- 2020-02-25 CN CN202010117027.4A patent/CN111233400A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5531823A (en) * | 1995-02-06 | 1996-07-02 | Atomic Energy Of Canada Limited | Low-heat high-performance concrete |
| CN102241497A (en) * | 2011-06-01 | 2011-11-16 | 上海建工材料工程有限公司 | Concrete with ultra-large volume, high strength and low hydration heat |
| CN102276224A (en) * | 2011-07-22 | 2011-12-14 | 中交上海三航科学研究院有限公司 | Marine engineering self-compacting high-performance concrete and preparation method thereof |
| CN103288398A (en) * | 2013-05-15 | 2013-09-11 | 宁波市高等级公路建设指挥部 | High-performance machine-made sand marine concrete and preparation method thereof |
| CN103819158A (en) * | 2014-01-14 | 2014-05-28 | 苏州中材建设有限公司 | Preparation method of high-volume stable concrete |
| CN105541234A (en) * | 2016-01-19 | 2016-05-04 | 中国长江三峡集团公司 | Temperature control anti-cracking method for large-volume hydraulic concrete for super high arch dam |
| CN108529947A (en) * | 2017-03-06 | 2018-09-14 | 北京城建银龙混凝土有限公司 | A kind of concrete inhibiting distress in concrete |
| CN108083703A (en) * | 2017-12-28 | 2018-05-29 | 中交天津航道局有限公司 | A kind of mud knot Detritus construction concrete match ratio when preparation method |
Non-Patent Citations (1)
| Title |
|---|
| 刘慧娴: "低热硅酸盐水泥在海工混凝土中的应用研究", 《中国优秀硕士学位论文全文数据库 基础科学辑》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112521173A (en) * | 2020-12-08 | 2021-03-19 | 中建西部建设湖南有限公司 | Limestone powder porous cement concrete material for dock chamber bottom plate drainage cushion and preparation method thereof |
| CN115974485A (en) * | 2022-12-29 | 2023-04-18 | 中建西部建设湖南有限公司 | Concrete and preparation method and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105837117B (en) | Non-evaporating foster PHC tubular pile concretes | |
| CN102910889B (en) | Aerated concrete wall material containing river silt and preparation method thereof | |
| CN109369097A (en) | A kind of low cracking resistance mass concrete of high performance of creeping of lower shrinkage | |
| CN110372298A (en) | A kind of preparation method of high-strength coral concrete | |
| CN110790552B (en) | Waste brick regenerated ultrahigh-toughness mixture and preparation method and application thereof | |
| CN103922662A (en) | Ultra-high performance cement base composite material | |
| CN107572841B (en) | Low-carbon cementing material and method for preparing concrete | |
| CN108529988B (en) | Impervious concrete for shield segment and preparation method thereof | |
| CN104446245A (en) | Super early-strength mortar | |
| CN110627449A (en) | C60 expansion self-compaction high-strength concrete and preparation method thereof | |
| CN107311559A (en) | Waste ceramic fine concrete and preparation method thereof | |
| CN104386969A (en) | High-strength and high-durability lightweight aggregate concrete and preparation method thereof | |
| CN111233400A (en) | Three-level gravel-mixed low-heat cement concrete for harbor engineering | |
| CN111747707B (en) | Impervious concrete | |
| CN110818351A (en) | Plastic concrete for runner cushion layer and preparation method thereof | |
| CN103819217A (en) | Aerated concrete block produced by dump-leached slags | |
| CN113698164A (en) | Anti-cracking and anti-settling road water-stable layer material and preparation method thereof | |
| CN103803920A (en) | Rock-fill concrete | |
| CN103043970A (en) | Concrete for nuclear power station | |
| CN113636802A (en) | Ultrahigh-performance concrete and preparation method thereof | |
| CN108793892A (en) | A kind of corrosion-prevention rust-resistance concrete and preparation method thereof | |
| CN113173754A (en) | C100 anti-abrasion thin-wall concrete and preparation method thereof | |
| CN112521173A (en) | Limestone powder porous cement concrete material for dock chamber bottom plate drainage cushion and preparation method thereof | |
| CN105645874A (en) | High-temperature molten slag composite micropowder concrete and preparation method thereof | |
| CN110845188A (en) | Sand-free macroporous concrete and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200605 |