CN106517937A - Pumping impervious super-retarding concrete and preparation method thereof - Google Patents
Pumping impervious super-retarding concrete and preparation method thereof Download PDFInfo
- Publication number
- CN106517937A CN106517937A CN201610935878.3A CN201610935878A CN106517937A CN 106517937 A CN106517937 A CN 106517937A CN 201610935878 A CN201610935878 A CN 201610935878A CN 106517937 A CN106517937 A CN 106517937A
- Authority
- CN
- China
- Prior art keywords
- concrete
- impervious
- super
- retarding
- pumping
- 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
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention relates to pumping impervious super-retarding concrete. The mix proportion of cement to micro-powder to sand to gravel to water to a super-retarding pumping aid of the concrete is 1:1.43:2.52:3.78:0.64:0.03, the cement is P.S.B32.5 level Portland blast furnace slag cement, the micro-powder is S75 superfine slag powder, and the super-retarding pumping aid is compounded from triethanolamine, sodium gluconate and superplasticizer according to the mass percents of 25%, 25% and 50%. The pumping impervious super-retarding concrete is high-performance concrete integrating pumpability, impermeability and super-retarding performance, has construction continuity, and meets special construction requirements. Novel and special bonding-retarding prestress is formed when the pumping impervious super-retarding concrete is applied to mass concrete construction, occlusive pile construction and a bond-free prestress cement concrete system. The pumping impervious super-retarding concrete is used for preventing cracks and cold joints and controlling slump losses during concrete construction.
Description
Technical field
The present invention relates to construction material, more particularly to a kind of to pump impervious ultra-retardation concrete and preparation method thereof.
Background technology
In torridity summer mass concrete construction, hole-drilling interlocking pile engineering, a large amount of continuous concreting constructions are mixed
Solidifying soil gradual loss is too fast, crack occurs.Therefore, need to adopt retarded concrete in construction.Extra retarded set is adopted according to requirement of engineering
Concrete.
Ultra-retardation concrete be it is a kind of in order to the presetting period for meeting special construction requirement and particular formulation reach 60h with
On, 28d intensity is not less than the concrete of design strength grade.Patent CN102924017A discloses a kind of ultra-retardation concrete,
Raw materials for production are relatively more, and technology controlling and process is difficult, and production cost is higher.
The content of the invention
The technical problem to be solved is to provide a kind of impervious ultra-retardation concrete of pumping, meets concrete strength
Grade C30, seepage-resistant grade P8, concrete initial set time are more than 60 hours, final setting time 70 hours or so, the drilling of pumping construction
Interlocking pile requirement of engineering.
For achieving the above object, the present invention employs the following technical solutions realization：
It is a kind of to pump impervious ultra-retardation concrete, its concrete mix cement：Micro mist：Sand：Rubble：Water：Extra retarded set pump
Agent is sent to be 1：1.43：2.52：3.78：0.64：0.03；The cement be P.S.B32.5 level portland slag cements, the micro mist
For S75 slag micropowders, the extra retarded set pumping admixture by triethanolamine, sodium gluconate, high efficiency water reducing agent by mass percentage
25%th, 25%, 50% ratio compounding is formed.
It is a kind of to pump impervious ultra-retardation concrete preparation method, complete according to the following steps：
1) extra retarded set pumping admixture is prepared by said ratio；
2) Binder Materials P.S.B32.5 level portland slag cement, the setting time of S75 slag micropowders are measured；
3) by said components proportioning ready-mixed concrete, the workability, loss of slump and setting time to concrete is carried out
Determine；
4) maturing mechanical property and endurance quality test.
Compared with prior art, the invention has the beneficial effects as follows
1. concrete retarding time initial set of the present invention is 60 hours, final set 70 hours, and Slow setting time can be according to extra retarded set
Pumping admixture volume is controlled, and does not affect the performance of concrete.Solve and apply during a large amount of continuous concretings of torridity summer
Work is difficult, too fast etc. difficult point of concrete gradual loss, has put off the exothermic process in course of hardening, has reduced aquation
Heat, reduces the possibility for crack occur.
2., under conditions of strength grade of concrete and seepage-resistant grade is not affected, meet hole-drilling interlocking pile engineering extra retarded set and mix
The construction requirement of soil is coagulated, the standard required for engineering is reached.
3. it is that a kind of pumpability, impermeability, high-performance of extra retarded set of integrating is mixed to pump impervious ultra-retardation concrete
Solidifying soil, it has construction continuity, meets special construction requirement.In mass concrete construction, it is engaged pile driving construction, is applied to nothing
In bonding prestress cement concrete system, a kind of slow bonding prestress of novel and unique is formed.In concrete construction to
Crack, cold joint are prevented, loss of slump is controlled.
Specific embodiment
With reference to embodiment, the present invention is further described：
Following examples describe the present invention.These embodiments are only that preferred embodiment of the invention is entered
Row description, does not limit to the scope of the present invention.
The impervious ultra-retardation concrete dispensing of one kind pumping is shown in Table 1；
Table 1：C30 pumps impervious ultra-retardation concrete match ratio (kg/m3)
| Sequence number | Cement 32.5 | Micro mist | Sand | Rubble | Water | Extra retarded set pumping admixture |
| Embodiment 1 | 280 | 120 | 705 | 1057 | 180 | 8 |
| Embodiment 2 | 300 | 130 | 755 | 1134 | 192 | 9 |
1) exist in triethanolamine, sodium gluconate, 25%, 25%, 50% ratio of high efficiency water reducing agent mass percent in advance
Extra retarded set pumping admixture is prepared by additive factory, and wherein high efficiency water reducing agent is UNF-5 retarding-type superplasticizers；
2) Binder Materials P.S.B32.5 level portland slag cement, the setting time of S75 slag micropowders are measured；
3) extra retarded set pumping admixture individually store, individually metering, independent feeding, it is by said components proportioning ready-mixed concrete, right
The workability of concrete, loss of slump and setting time are measured；
4) using concrete mixing and transporting car transport to job site, mark on dispatch list delivery availability, arrival time and
Unsnatch the material time；
5) maturing mechanical property and endurance quality test are carried out.
Embodiment performance indications are shown in Table 2；
Table 2：
Claims (2)
1. it is a kind of to pump impervious ultra-retardation concrete, it is characterised in that its concrete mix cement：Micro mist：Sand：Rubble：Water：
Extra retarded set pumping admixture is 1：1.43：2.52：3.78：0.64：0.03；The cement is P.S.B32.5 level portland slag cements,
The micro mist is S75 slag micropowders, and the extra retarded set pumping admixture is by triethanolamine, sodium gluconate, high efficiency water reducing agent by quality
25%, 25%, 50% ratio of percentage compounding is formed.
2. one kind according to claim 1 pumps impervious ultra-retardation concrete, it is characterised in that a kind of pumping is impervious super slow
Solidifying preparation method of concrete, is completed according to the following steps：
1) extra retarded set pumping admixture is prepared by said ratio；
2) Binder Materials P.S.B32.5 level portland slag cement, the setting time of S75 slag micropowders are measured；
3) by said components proportioning ready-mixed concrete, the workability, loss of slump and setting time to concrete is measured；
4) maturing mechanical property and endurance quality test.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610935878.3A CN106517937A (en) | 2016-11-01 | 2016-11-01 | Pumping impervious super-retarding concrete and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610935878.3A CN106517937A (en) | 2016-11-01 | 2016-11-01 | Pumping impervious super-retarding concrete and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106517937A true CN106517937A (en) | 2017-03-22 |
Family
ID=58292248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610935878.3A Pending CN106517937A (en) | 2016-11-01 | 2016-11-01 | Pumping impervious super-retarding concrete and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106517937A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107285683A (en) * | 2017-07-06 | 2017-10-24 | 广西壮族自治区冶金建设公司 | A kind of slow reinforced concrete and its application in A/B interlocking piles |
| CN108585691A (en) * | 2018-05-30 | 2018-09-28 | 江苏百瑞吉新材料有限公司 | It is a kind of to pump impervious ultra-retardation concrete and preparation method thereof |
| CN113185233A (en) * | 2021-05-17 | 2021-07-30 | 中国五冶集团有限公司 | Super-retarding concrete and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101323515A (en) * | 2008-07-18 | 2008-12-17 | 东南大学 | Ultra-high strong concrete having ultra-high pumping performance and method for preparing the same |
| KR101078951B1 (en) * | 2011-01-24 | 2011-11-01 | 주식회사 삼표 | Slag powder composition and concrete composition comprising the same |
| CN102659352A (en) * | 2012-04-11 | 2012-09-12 | 云南建工集团有限公司 | Preparation method of super-retarded large-volume concrete and super-retarded ground pit concrete |
| CN102924017A (en) * | 2012-11-23 | 2013-02-13 | 上海市建筑构件制品有限公司 | Super retarding concrete and application thereof |
| CN103145386A (en) * | 2013-02-04 | 2013-06-12 | 天津二十冶建设有限公司 | Antifreeze and impervious pumpcrete compound |
-
2016
- 2016-11-01 CN CN201610935878.3A patent/CN106517937A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101323515A (en) * | 2008-07-18 | 2008-12-17 | 东南大学 | Ultra-high strong concrete having ultra-high pumping performance and method for preparing the same |
| KR101078951B1 (en) * | 2011-01-24 | 2011-11-01 | 주식회사 삼표 | Slag powder composition and concrete composition comprising the same |
| CN102659352A (en) * | 2012-04-11 | 2012-09-12 | 云南建工集团有限公司 | Preparation method of super-retarded large-volume concrete and super-retarded ground pit concrete |
| CN102924017A (en) * | 2012-11-23 | 2013-02-13 | 上海市建筑构件制品有限公司 | Super retarding concrete and application thereof |
| CN103145386A (en) * | 2013-02-04 | 2013-06-12 | 天津二十冶建设有限公司 | Antifreeze and impervious pumpcrete compound |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107285683A (en) * | 2017-07-06 | 2017-10-24 | 广西壮族自治区冶金建设公司 | A kind of slow reinforced concrete and its application in A/B interlocking piles |
| CN108585691A (en) * | 2018-05-30 | 2018-09-28 | 江苏百瑞吉新材料有限公司 | It is a kind of to pump impervious ultra-retardation concrete and preparation method thereof |
| CN113185233A (en) * | 2021-05-17 | 2021-07-30 | 中国五冶集团有限公司 | Super-retarding concrete and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2734812C2 (en) | Real-time control of rheological properties of construction material for 3d printing | |
| US11331827B2 (en) | Method for the 3D-printing of mineral binder compositions | |
| CN111807804B (en) | Sand-free paste-based self-leveling mortar and preparation method thereof | |
| US7892351B1 (en) | Composition of materials and processes for making boroncitrates to create cements with field adjustable set times | |
| CN111072366B (en) | Inorganic grouting material capable of stopping open water and reinforcing structure and preparation method and application thereof | |
| CN104072063B (en) | Grouting material for high fluidity post-tensioning prestressed pipe and preparation method of grouting material | |
| CN106587862A (en) | Superfine quick-setting self-compacting repair mortar and preparation method thereof | |
| CN107793098B (en) | High-fluidity rapid repair mortar | |
| CN106517937A (en) | Pumping impervious super-retarding concrete and preparation method thereof | |
| CN108821689A (en) | A kind of modified concrete and preparation method thereof | |
| CN109020451A (en) | A kind of tubular pile cement and preparation method thereof | |
| CN109293311A (en) | Ultra-high performance concrete slurry, ultra-high performance concrete and preparation method thereof | |
| JP5326247B2 (en) | Hydraulic mortar | |
| WO2021191839A1 (en) | Dry cementitious material mixture for 3d-printing | |
| CN105503103B (en) | A kind of polymer-modified cement-based waterproof mortar | |
| CN109704693B (en) | Sulphoaluminate cement-based self-compacting mortar and use method thereof | |
| CN107746233A (en) | A kind of mortar for building and its production method | |
| EP4151408A1 (en) | Dry cementitious material mixture for 3d-printing | |
| CN104291726A (en) | Ultralow-content post-tensioned pre-stressed pipeline grouting agent, and preparation method and application thereof | |
| JP2014136424A (en) | Method for producing concrete | |
| CN103524093B (en) | A kind of super high strength concrete | |
| JP2005162949A (en) | Grouting material | |
| JP6300365B2 (en) | Underwater inseparable fast-hardening concrete and method for producing the same | |
| US11873251B1 (en) | Concrete composition for use in construction and methods of applying the same | |
| CN108147751A (en) | A kind of construction high-weatherability concrete and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170322 |