CN108609957A - Extra retarded set lean concrete for deep basal pit hole-drilling interlocking pile - Google Patents
Extra retarded set lean concrete for deep basal pit hole-drilling interlocking pile Download PDFInfo
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- CN108609957A CN108609957A CN201810503837.6A CN201810503837A CN108609957A CN 108609957 A CN108609957 A CN 108609957A CN 201810503837 A CN201810503837 A CN 201810503837A CN 108609957 A CN108609957 A CN 108609957A
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- Prior art keywords
- lean concrete
- set lean
- retarded set
- extra retarded
- sucrose
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Classifications
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- 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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
-
- 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
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0004—Synthetics
- E02D2300/0018—Cement used as binder
- E02D2300/002—Concrete
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Ceramic Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Piles And Underground Anchors (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The invention discloses a kind of extra retarded set lean concrete for deep basal pit hole-drilling interlocking pile, including raw material sucrose, the sucrose volume of sucrose passes through formula：Δ t=358x+501x2It obtains；Wherein, Δ t is the Slow setting time of extra retarded set lean concrete, unit：Hour；X is the mass percent that sucrose accounts for extra retarded set lean concrete cementitious material gross mass；The beneficial effects of the invention are as follows：The present invention overcomes the shortcomings of the prior art, from the relation equation of sucrose volume and Slow setting time, the concrete retarding time science required according to construction environment determines sucrose retarder volume, and the technical barrier of the mixture working performance difference of extra retarded set lean concrete is solved using the technological means of the II grade flyash and S75 slag powders of mixing 70% again, occlusion cutting and the construction quality for ensuring hole-drilling interlocking pile significantly improve the globality and antiseepage water blocking effect of diaphragm wall.
Description
Technical field
The present invention relates to building material technical fields, and in particular to is used for the poor coagulation of extra retarded set of deep basal pit hole-drilling interlocking pile
Soil.
Background technology
Hole-drilling interlocking pile have geological adaptability is strong, low engineering cost, speed of application are fast, good environmental protection, to construction
Site condition requires low advantage.Compared with cement soil continuous wall, hole-drilling interlocking pile can be in viscosity as deep foundation pit supporting structure
It is applied in the bad conditions stratum such as soil, silt, mud, quicksand, underground water enrichment, globality, antiseepage water blocking effect are more superior,
And building enclosure intensity higher.Hole-drilling interlocking pile is to technical indicators such as the setting time of concrete, the slump and anti-intensity simultaneously
It is more demanding, it is desirable that the presetting period of concrete increases by 48~72h in 60h~80h, relative to normal concrete Slow setting time,
The slump should meet underwater gliders and prevent " piping " occur in work progress, and 3d compression strength is not more than 3MPa, 28d
Intensity meets design requirement.
Extra retarded set lean concrete has the industrial residues such as setting time is controllable, cement consumption is low, flyash and slag powders
The advantages that utilization rate is high is a kind of environmentally protective, economic and practical concrete.Currently, the research about extra retarded set lean concrete
Have no relevant report, how the Slow setting time of Scientific Regulation concrete is to 48h~72h, and it is aobvious to solve lean concrete working performance
It obtains particularly difficult.Therefore, from the relation equation of sucrose retarder volume and setting time, when Scientific Regulation concrete retarding
Between, the comprehensive utilization industrial residues such as flyash and slag powders improve the working performance of lean concrete to promoting extra retarded set lean concrete
Quality be of great significance.
Invention content
It is an object of the invention to solve the shortcomings of the prior art, provide a kind of for deep basal pit hole-drilling interlocking pile
Extra retarded set lean concrete solves cement soil continuous wall globality and antiseepage water blocking technical barrier under unfavorable geological condition, especially
Solve setting time and working performance control of the extra retarded set lean concrete in the application of deep basal pit hole-drilling interlocking pile building enclosure
Technical barrier.
In order to solve the above technical problems, the present invention uses following technical scheme：
For the extra retarded set lean concrete of deep basal pit hole-drilling interlocking pile, including raw material sucrose, the sucrose volume of the sucrose
Pass through formula：Δ t=358x+501x2It obtains；
Wherein, Δ t is the Slow setting time of extra retarded set lean concrete, unit：Hour；
X is the mass percent that sucrose accounts for extra retarded set lean concrete cementitious material gross mass.
Further technical solution be further include raw material below by weight ratio among the above：Rubble 1090~
1115kg, 800~840kg of Machine-made Sand, 75~85kg of cement, 125~135kg of flyash, 80~90kg of slag powders, water 180~
185kg, 4.5~4.8kg of polycarboxylate water-reducer.
Further technical solution is that the Slow setting time of extra retarded set lean concrete is 48~60h among the above.
Further technical solution is, includes raw material below by weight ratio among the above：1100~1115kg of rubble,
810~840kg of Machine-made Sand, 80~85kg of cement, 125~130kg of flyash, 85~90kg of slag powders, 180~182kg of water, gather
4.5~4.6kg of carboxylic acid water reducer.
Further technical solution is, includes raw material below by weight ratio among the above：1090~1110kg of rubble,
800~830kg of Machine-made Sand, 75~80kg of cement, 130~135kg of flyash, 80~85kg of slag powders, 183~185kg of water, gather
4.6~4.8kg of carboxylic acid water reducer.
Further technical solution is, includes raw material below by weight ratio among the above：1110~1115kg of rubble,
820~830kg of Machine-made Sand, 80~82kg of cement, 130~132kg of flyash, 85~87kg of slag powders, 182~183kg of water, gather
4.7~4.8kg of carboxylic acid water reducer.
Further technical solution is that cement is PO42.5 cement among the above, and flyash is II grades of flyash, slag
Powder is S75 slag powders.
Compared with prior art, the beneficial effects of the invention are as follows：
The present invention overcomes the shortcomings of the prior art, from the relation equation of sucrose volume and Slow setting time, root
The concrete retarding time science required according to construction environment determines sucrose retarder volume, and using the II grade fine coal for mixing 70% again
The technological means of ash and S75 slag powders solves the technical barrier of the mixture working performance difference of extra retarded set lean concrete, it is ensured that
The occlusion cutting of hole-drilling interlocking pile and construction quality significantly improve the globality and antiseepage water blocking effect of diaphragm wall.The present invention can
It is widely used in deep basal pit hole-drilling interlocking pile building enclosure, the resource that the solid waste such as flyash, slag powders may be implemented is comprehensive
It closes and utilizes, realize green, low-carbon, environmental protection, there is significant Social benefit and economic benefit.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to embodiments, to invention into
Row is further described.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to limit
The fixed present invention.
Rubble used in following example 1~3 is 5~25mm continuous grading rubbles, and crush index 10.9%, gill shape contains
Amount 2.3%, clay content 0.10%；Machine-made Sand used is sand in the areas II of fineness modulus 3.0, and crush index 10.1%, mountain flour contains
Measure 9.8%, MB values 0.75；The water-reducing rate of polycarboxylate water-reducer used is more than 25%, solid content 12%；Cement used is China
The PO42.5 cement of newly (Red River) Cement Co., Ltd production, density 3.13g/cm3,3d compression strength 26.8MPa, 28d are anti-
Compressive Strength 49.0MPa；Flyash used is II grade of flyash of Yunnan Heng Yang Industrial Co., Ltd.s, density 2.44g/cm3,45 μm
Tail over 11.3%, loss on ignition 1.89%, water demand ratio 97.0%, SO3Content is 0.22%；Slag powders used are for Yuxi three and newly
Type building material technique Co., Ltd S75 slag powders, specific surface area 375m2/ kg, density 2.88g/cm3, 7d activity indexs 58%, 28d
Activity index 78%, mortar fluidity ratio 99%；Sucrose used is commercially available；Water used is Kunming tap water.
Embodiment 1：
A kind of extra retarded set lean concrete for deep basal pit hole-drilling interlocking pile, by rubble, Machine-made Sand, PO42.5 cement,
II grades of flyash, S75 slag powders, water, polycarboxylate water-reducer mixed preparing form, and the quality proportioning of folk prescription concrete each component is such as
Under：Rubble 1115kg, Machine-made Sand 800kg, PO42.5 cement 75kg, II grades of flyash 135kg, S75 slag powders 90kg, water
185kg, polycarboxylate water-reducer 4.8kg.Concrete construction Slow setting time requires to reach 60h, according to sucrose volume and Slow setting time
Relation equation be Δ t=358x+501x2It calculates and determines sucrose retarder volume, solve equation 60=358x+501x2Determine slow setting
Agent volume is 0.140%, then the sucrose quality of folk prescription concrete is 300 × 0.140%=0.420kg.The concrete of embodiment 1
Match ratio is shown in Table 1, and working performance, Slow setting time and the mechanical property of concrete are shown in Table 2.
Embodiment 2：
A kind of extra retarded set lean concrete for deep basal pit hole-drilling interlocking pile, by rubble, Machine-made Sand, PO42.5 cement,
II grades of flyash, S75 slag powders, water, polycarboxylate water-reducer mixed preparing form, and the quality proportioning of folk prescription concrete each component is such as
Under：Rubble 1105kg, Machine-made Sand 820kg, PO42.5 cement 80kg, II grades of flyash 130kg, S75 slag powders 85kg, water
180kg, polycarboxylate water-reducer 4.65kg.Concrete construction Slow setting time requires to reach 72h, according to sucrose volume and Slow setting time
Relation equation be Δ t=358x+501x2It calculates and determines sucrose retarder volume, solve equation 72=358x+501x2Determine slow setting
Agent volume is 0.164%, then the sucrose quality of folk prescription concrete is 295 × 0.164%=0.484kg.The concrete of embodiment 2
Match ratio is shown in Table 1, and working performance, Slow setting time and the mechanical property of concrete are shown in Table 2.
Embodiment 3：
A kind of extra retarded set lean concrete for deep basal pit hole-drilling interlocking pile, by rubble, Machine-made Sand, PO42.5 cement,
II grades of flyash, S75 slag powders, water, polycarboxylate water-reducer mixed preparing form, and the quality proportioning of folk prescription concrete each component is such as
Under：Rubble 1090kg, Machine-made Sand 840kg, PO42.5 cement 85kg, II grades of flyash 125kg, S75 slag powders 80kg, water
180kg, polycarboxylate water-reducer 4.5kg.Concrete construction Slow setting time requires to reach 48h, according to sucrose volume and Slow setting time
Relation equation be Δ t=358x+501x2It calculates and determines sucrose retarder volume, solve equation 48=358x+501x2Determine slow setting
Agent volume is 0.115%, then the sucrose quality of folk prescription concrete is 290 × 0.115%=0.334kg.The concrete of embodiment 3
Match ratio is shown in Table 1, and working performance, Slow setting time and the mechanical property of concrete are shown in Table 2.
Table 1 is used for the extra retarded set lean concrete match ratio of deep basal pit hole-drilling interlocking pile
Table 2 is used for extra retarded set lean concrete working performance, Slow setting time and the mechanical property of deep basal pit hole-drilling interlocking pile
As shown in Table 2,1~example of embodiment 3 is using provided by the invention a kind of for the super slow of deep basal pit hole-drilling interlocking pile
Solidifying lean concrete mixture is functional, and concrete retarding time deviation is less than 3%, has excellent workability, the slump
Meet underwater gliders requirement, avoids appearance " piping " phenomenon in work progress；3d compression strength is not more than 3MPa,
28d intensity meets design requirement.
Embodiment 4：
Include raw material by weight ratio for the extra retarded set lean concrete of deep basal pit hole-drilling interlocking pile：Rubble 1115kg, machine
Sand 800kg processed, cement 85kg, flyash 125kg, slag powders 90kg, water 180kg, polycarboxylate water-reducer 4.8kg.
Embodiment 5：
Include raw material by weight ratio for the extra retarded set lean concrete of deep basal pit hole-drilling interlocking pile：Rubble 1090kg, machine
Sand 840kg processed, cement 75kg, flyash 135kg, slag powders 80kg, water 185kg, polycarboxylate water-reducer 4.5kg.
Embodiment 6：
Include raw material by weight ratio for the extra retarded set lean concrete of deep basal pit hole-drilling interlocking pile：Rubble 1100kg, machine
Sand 840kg processed, cement 80kg, flyash 130kg, slag powders 85kg, water 182kg, polycarboxylate water-reducer 4.5kg.
Embodiment 7：
Include raw material by weight ratio for the extra retarded set lean concrete of deep basal pit hole-drilling interlocking pile：Rubble 1115kg, machine
Sand 810kg processed, cement 85kg, flyash 125kg, slag powders 90kg, water 180kg, polycarboxylate water-reducer 4.6kg.
Embodiment 8：
Include raw material by weight ratio for the extra retarded set lean concrete of deep basal pit hole-drilling interlocking pile：Rubble 1110kg, machine
Sand 830kg processed, cement 75kg, flyash 135kg, slag powders 80kg, water 185kg, polycarboxylate water-reducer 4.6kg.
Embodiment 9：
Include raw material by weight ratio for the extra retarded set lean concrete of deep basal pit hole-drilling interlocking pile：Rubble 1090kg, machine
Sand 800kg processed, cement 80kg, flyash 130kg, slag powders 85kg, water 183kg, polycarboxylate water-reducer 4.8kg.
Embodiment 10：
Include raw material by weight ratio for the extra retarded set lean concrete of deep basal pit hole-drilling interlocking pile：Rubble 1115kg, machine
Sand 820kg processed, cement 82kg, flyash 130kg, slag powders 87kg, water 182kg, polycarboxylate water-reducer 4.8kg.
Embodiment 11：
Include raw material by weight ratio for the extra retarded set lean concrete of deep basal pit hole-drilling interlocking pile：Rubble 1110kg, machine
Sand 830kg processed, cement 80kg, flyash 132kg, slag powders 85kg, water 183kg, polycarboxylate water-reducer 4.7kg.
Although reference be made herein to invention has been described for multiple explanatory embodiments of the invention, however, it is to be understood that
Those skilled in the art can be designed that a lot of other modification and implementations, these modifications and implementations will be fallen in this Shen
It please be within disclosed scope and spirit.More specifically, it is disclosed in the scope of the claims in the application, it can be to theme
The building block and/or layout of composite configuration carry out a variety of variations and modifications.In addition to the change carried out to building block and/or layout
Shape and improvement are outer, and to those skilled in the art, other purposes also will be apparent.
Claims (7)
1. a kind of extra retarded set lean concrete for deep basal pit hole-drilling interlocking pile, it is characterised in that：Including raw material sucrose, the sugarcane
The sucrose volume of sugar passes through formula：Δ t=358x+501x2It obtains；
Wherein, Δ t is the Slow setting time of extra retarded set lean concrete, unit：Hour；
X is the mass percent that sucrose accounts for extra retarded set lean concrete cementitious material gross mass.
2. the extra retarded set lean concrete according to claim 1 for deep basal pit hole-drilling interlocking pile, it is characterised in that：By weight
Amount proportioning further includes raw material below：1090~1115kg of rubble, 800~840kg of Machine-made Sand, 75~85kg of cement, flyash
125~135kg, 80~90kg of slag powders, 180~185kg of water, 4.5~4.8kg of polycarboxylate water-reducer.
3. the extra retarded set lean concrete according to claim 1 for deep basal pit hole-drilling interlocking pile, it is characterised in that：It is described
The Slow setting time of extra retarded set lean concrete is 48~60h.
4. the extra retarded set lean concrete according to claim 2 for deep basal pit hole-drilling interlocking pile, it is characterised in that：By weight
Amount proportioning includes raw material below：1100~1115kg of rubble, 810~840kg of Machine-made Sand, 80~85kg of cement, flyash 125
~130kg, 85~90kg of slag powders, 180~182kg of water, 4.5~4.6kg of polycarboxylate water-reducer.
5. the extra retarded set lean concrete according to claim 2 for deep basal pit hole-drilling interlocking pile, it is characterised in that：By weight
Amount proportioning includes raw material below：1090~1110kg of rubble, 800~830kg of Machine-made Sand, 75~80kg of cement, flyash 130
~135kg, 80~85kg of slag powders, 183~185kg of water, 4.6~4.8kg of polycarboxylate water-reducer.
6. the extra retarded set lean concrete according to claim 2 for deep basal pit hole-drilling interlocking pile, it is characterised in that：By weight
Amount proportioning includes raw material below：1110~1115kg of rubble, 820~830kg of Machine-made Sand, 80~82kg of cement, flyash 130
~132kg, 85~87kg of slag powders, 182~183kg of water, 4.7~4.8kg of polycarboxylate water-reducer.
7. the extra retarded set lean concrete according to claim 2 for deep basal pit hole-drilling interlocking pile, it is characterised in that：It is described
Cement is PO42.5 cement, and flyash is II grades of flyash, and slag powders are S75 slag powders.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810503837.6A CN108609957A (en) | 2018-05-23 | 2018-05-23 | Extra retarded set lean concrete for deep basal pit hole-drilling interlocking pile |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810503837.6A CN108609957A (en) | 2018-05-23 | 2018-05-23 | Extra retarded set lean concrete for deep basal pit hole-drilling interlocking pile |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110295606A (en) * | 2019-07-05 | 2019-10-01 | 广州穗岩土木科技股份有限公司 | A kind of foundation pit interlocking pile water stop construction method |
| CN116063011A (en) * | 2022-12-23 | 2023-05-05 | 上海市建筑科学研究院有限公司 | Cementing material special for secant pile concrete and preparation method and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104402523A (en) * | 2014-11-20 | 2015-03-11 | 云南建工集团有限公司 | Method for regulating and controlling super-retarding concrete setting time based on sodium gluconate retarder |
| CN105541930A (en) * | 2015-12-16 | 2016-05-04 | 中铁十二局集团有限公司 | Glucose sulfonate preparation method |
-
2018
- 2018-05-23 CN CN201810503837.6A patent/CN108609957A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104402523A (en) * | 2014-11-20 | 2015-03-11 | 云南建工集团有限公司 | Method for regulating and controlling super-retarding concrete setting time based on sodium gluconate retarder |
| CN105541930A (en) * | 2015-12-16 | 2016-05-04 | 中铁十二局集团有限公司 | Glucose sulfonate preparation method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110295606A (en) * | 2019-07-05 | 2019-10-01 | 广州穗岩土木科技股份有限公司 | A kind of foundation pit interlocking pile water stop construction method |
| CN116063011A (en) * | 2022-12-23 | 2023-05-05 | 上海市建筑科学研究院有限公司 | Cementing material special for secant pile concrete and preparation method and application thereof |
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Application publication date: 20181002 |