CN108147752A - A kind of ultra-retardation concrete - Google Patents

A kind of ultra-retardation concrete Download PDF

Info

Publication number
CN108147752A
CN108147752A CN201810124544.7A CN201810124544A CN108147752A CN 108147752 A CN108147752 A CN 108147752A CN 201810124544 A CN201810124544 A CN 201810124544A CN 108147752 A CN108147752 A CN 108147752A
Authority
CN
China
Prior art keywords
parts
ultra
water
concrete
flyash
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
Application number
CN201810124544.7A
Other languages
Chinese (zh)
Inventor
何科文
韩建国
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chengdu Acer Building Materials Ltd By Share Ltd
Original Assignee
Chengdu Acer Building Materials Ltd By Share Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Chengdu Acer Building Materials Ltd By Share Ltd filed Critical Chengdu Acer Building Materials Ltd By Share Ltd
Priority to CN201810124544.7A priority Critical patent/CN108147752A/en
Publication of CN108147752A publication Critical patent/CN108147752A/en
Pending legal-status Critical Current

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
    • C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B18/04—Waste materials; Refuse
    • C04B18/06—Combustion residues, e.g. purification products of smoke, fumes or exhaust gases
    • C04B18/08—Flue dust, i.e. fly ash
    • 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
    • C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B18/04—Waste materials; Refuse
    • C04B18/14—Waste materials; Refuse from metallurgical processes
    • C04B18/141—Slags
    • 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
    • C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B18/04—Waste materials; Refuse
    • C04B18/14—Waste materials; Refuse from metallurgical processes
    • C04B18/146—Silica fume
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Civil Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

The invention discloses a kind of ultra-retardation concretes, include the raw material of following parts by weight：260 290 parts of cement, 30 45 parts of flyash, 70 100 parts of miberal powder, 12 24 parts of silicon ash, 79 parts of water-reducing agent, 7.2 9 parts of retarder, 750 790 parts of Machine-made Sand, 950 1000 parts of rubble, 170 180 parts of water.The present invention to sand, rubble, water-reducing agent, retarder, water in silicon ash, cement, flyash, miberal powder, mechanism by carrying out rational proportion, the obtained ultra-retardation concrete intensity that cooperates between each raw material is more than 40MPa, setting time is more than 100 hours, concrete strength is both needed for interlocking pile etc., the concrete construction of longer setting time is required to provide guarantee again, be of great significance to the development of concrete industry.

Description

A kind of ultra-retardation concrete
Technical field
The invention belongs to technical field of building construction, especially a kind of ultra-retardation concrete.
Background technology
The setting time of concrete is an important indicator of workability of concrete, directly affect concrete it is operable when Between, the arrangement of working procedure and duration, also affect the performance after other workability indexs and concrete hardening performance and hardening. There are initial set and final set in the setting time of concrete.Self-watering is risen to needed for concrete starts to lose plasticity, mobility reduces Time, referred to as presetting period.Lost completely to concrete from during self-watering plasticity, begin with needed for certain structural strength when Between, referred to as final setting time.
On the one hand ultra-retardation concrete requires concrete early stage to have longer setting time, on the other hand must have again enough Later strength.From the angle of material science, this paradox brings certain difficulty to the research of super concrete.It is super Retarded concrete is widely used in due to its unique performance in the hole-drilling interlocking pile of the enclosed structures such as subway.The arrangement of interlocking pile Form is generally one A (plain concrete pile) and B (reinforced concrete pile) arranged for interval, and when construction first constructs A, It constructs B afterwards, A pile concretes use ultra-retardation concrete, it is necessary to complete B before the initial set of A pile concretes.Due to extra retarded set and It is to meet 60h- that concrete strength, which develops from the angle contradiction of materialogy, usual interlocking pile itself with ultra-retardation concrete, The setting time requirement of 80h, intensity requirement is relatively low, and common intensity requirement is C15 or C20.Therefore, it works out a kind of with more High intensity and the ultra-retardation concrete of longer setting time, are a technical problem to be solved urgently.
Invention content
The technical problems to be solved by the invention are to provide a kind of while have the super of higher intensity and longer setting time Retarded concrete.
The technical solution adopted by the present invention to solve the technical problems is：A kind of ultra-retardation concrete, including following weight The raw material of part：260-290 parts of cement, 70-100 parts of miberal powder, 12-24 parts of silicon ash, 7-9 parts of water-reducing agent, delays 30-45 parts of flyash Solidifying 7.2-9 parts of agent, 750-790 parts of Machine-made Sand, 950-1000 parts of rubble, 170-180 parts of water.
Preferably, a kind of ultra-retardation concrete includes the raw material of following parts by weight：280 parts of cement, flyash 40 Part, 80 parts of miberal powder, 20 parts of silicon ash, 8 parts of water-reducing agent, 9 parts of retarder, 770 parts of Machine-made Sand, 978 parts of rubble, 172 parts of water.
Preferably, the Machine-made Sand is sand in mechanism, meets continuous grading, fineness modulus 2.3-3.0, clay content≤ 3.0%, moisture content ＜ 0.5%, clod content≤1.0%.
Preferably, the cement is PO42.5 cement.
Preferably, the flyash is II grade of flyash of F classes.
Preferably, the miberal powder is S95 grades of miberal powders.
Preferably, the apparent density of the silicon ash is 2200kg/m3, specific surface area 25000m2/kg。
Preferably, the ballast grain sizes are 5-25mm, meet continuous grading, needle, sheet-like particle content≤15%, clay content ≤ 1.0%, clod content≤0.5%, moisture content ＜ 0.2%.
Preferably, the water-reducing agent is high performance water reducing agent of polyocarboxy acid.
Preferably, the retarder adds chemical industry VF-26 for upper sea route.
The beneficial effects of the invention are as follows：The present invention by sand in silicon ash, cement, flyash, miberal powder, mechanism, rubble, subtract Aqua, retarder and water carry out rational proportion, and the obtained ultra-retardation concrete 28d intensity that cooperates between each raw material is big In 40MPa, setting time is more than 100 hours, not only needs concrete strength for interlocking pile etc., but also require the mixed of longer setting time Solidifying soil construction provides guarantee, is of great significance to the development of concrete industry.
Specific embodiment
The experiment that the present invention is carried out：
The raw material selection that the present invention tests：Cement-Lafarge PO42.5, II grade of flyash of flyash-F classes, miberal powder- S95 grades of miberal powders, the apparent density of silicon ash-silicon ash is 2200kg/m3, specific surface area 25000m2/ kg, sand-satisfaction connects in mechanism Continuous grading, fineness modulus 2.3-3.0, clay content≤3.0%, moisture content ＜ 0.5%, clod content≤1.0%；Rubble-grain Diameter is 5-25mm, meets continuous grading, needle, sheet-like particle content≤15%, clay content≤1.0%, clod content≤0.5%, Moisture content ＜ 0.2%；Water-reducing agent-high performance water reducing agent of polyocarboxy acid, retarder-upper sea route add chemical industry VF-26 retarder.
The content (unit/kg) of each component in 1 experimental group 1-14 of table
Experimental group Cement Flyash Miberal powder Silicon ash Sand in mechanism Rubble Water-reducing agent Retarder Water
1 320 0 80 0 770 978 8 7.8 172
2 300 20 80 0 770 978 8 7.8 172
3 290 30 80 0 770 978 8 7.8 172
4 280 40 80 0 770 978 8 7.8 172
5 270 50 80 0 770 978 8 7.8 172
6 260 60 80 0 770 978 8 7.8 172
7 250 70 80 0 770 978 8 7.8 172
8 360 40 0 0 770 978 8 7.8 172
9 300 40 60 0 770 978 8 7.8 172
10 290 40 70 0 770 978 8 7.8 172
11 280 40 80 0 770 978 8 7.8 172
12 270 40 90 0 770 978 8 7.8 172
13 260 40 100 0 770 978 8 7.8 172
14 250 40 110 0 770 978 8 7.8 172
1st, influence of the addition content of flyash to concrete strength and setting time
Experimental group 1-7 lists experiment by changing admixture quantity research concrete strength and the setting time of flyash, table 1 The content of group 1-7 each components carries out performance detection to the concrete obtained according to this proportioning, and the results are shown in Table 2, can see Go out, in the case that sand, rubble, water-reducing agent, retarder, water are certain in cement, miberal powder, mechanism, with the increasing of fly ash content Add, the slump, divergence and 28d intensity first increase, and are then gradually reduced, and setting time gradually increases, and works as fly ash content During for 30kg, the slump, divergence and 28d intensity, setting time are satisfied by requiring, and when flyash mixed dosage is 50kg, The slump and divergence start significantly to reduce, thus obtain sand in cement, flyash, miberal powder, mechanism, rubble, water-reducing agent, Retarder, water compound tense can improve intensity and the setting time of concrete, in the concrete of experimental group 1-7 proportionings, fine coal When the parts by weight of grey addition content are 30-45 parts, obtained concrete properties are optimal.
Influence of the addition content of 2 flyash of table to concrete strength and setting time
Experimental group The slump Divergence 28d intensity/MPa Presetting period min Final setting time min
1 200 580 22.3 4939 6203
2 210 590 30.4 4952 6255
3 215 600 33.8 4978 6276
4 210 600 38.5 4993 6293
5 200 575 35.8 5022 6327
6 190 560 30.7 5058 6371
7 185 550 23.8 5103 6396
2nd, influence of the addition content of miberal powder to concrete strength and setting time
Influence of the addition content of 3 miberal powder of table to concrete strength and setting time
Experimental group The slump Divergence 28d intensity/MPa Presetting period min Final setting time min
8 200 580 25.4 4933 6197
9 210 590 31.6 4957 6251
10 215 600 35.4 4971 6281
11 210 600 38.5 4993 6293
12 200 575 36.3 5028 6330
13 190 560 34.7 5038 6345
14 185 550 30.2 5084 6382
Experimental group 8-14 lists experiment by changing admixture quantity research concrete strength and the setting time of miberal powder, table 1 The content of group 8-14 each components carries out performance detection to the concrete obtained according to this proportioning, and the results are shown in Table 3.It can see Go out, in the case that sand, rubble, water-reducing agent, retarder, water are certain in cement, flyash, mechanism, with the increasing of miberal powder content Add, the slump, divergence and 28d intensity first increase, and are then gradually reduced, and setting time gradually increases, when miberal powder content is During 70kg, the slump, divergence and 28d intensity, setting time are satisfied by requiring, and when miberal powder addition content is 100kg, it collapses Degree and divergence start significantly to reduce, therefore obtain in the concrete matched at this, and the parts by weight of miberal powder addition content are 70- At 100 parts, obtained concrete properties are optimal.
The content (unit/kg) of each component in 4 experimental group 15-31 of table
Experimental group Cement Flyash Miberal powder Silicon ash Sand in mechanism Rubble Water-reducing agent Retarder Water
15 280 40 80 8 770 978 8 7.8 172
16 260 40 80 12 770 978 8 7.8 172
17 260 40 80 16 770 978 8 7.8 172
18 260 40 80 20 770 978 8 7.8 172
19 260 40 80 24 770 978 8 7.8 172
20 280 40 80 28 770 978 8 7.8 172
21 260 40 80 32 770 978 8 7.8 172
22 260 40 80 20 770 978 8 6 172
23 260 40 80 20 770 978 8 6.4 172
24 260 40 80 20 770 978 8 6.8 172
25 260 40 80 20 770 978 8 7.2 172
26 260 40 80 20 770 978 8 7.6 172
27 260 40 80 20 770 978 8 7.8 172
28 260 40 80 20 770 978 8 8.2 172
29 260 40 80 20 770 978 8 8.6 172
30 260 40 80 20 770 978 8 9 172
31 260 40 80 20 770 978 8 10 172
3rd, influence of the addition content of silicon ash to concrete strength and setting time
Experimental group 15-21 lists experiment by changing admixture quantity research concrete strength and the setting time of silicon ash, table 4 The content of group 15-21 each components carries out performance detection to the concrete obtained according to this proportioning, and the results are shown in Table 5.It can see Go out, in the case that sand, rubble, water-reducing agent, retarder, water are certain in cement, flyash, miberal powder, mechanism, silicon ash is added to One step enhances the intensity of concrete；With the increase of miberal powder content, the slump, divergence and 28d intensity first increase, then by It is decrescence small, and setting time gradually increases, when miberal powder content is 70kg, the slump and divergence are gradually reduced, and 28d intensity Gradually increase with setting time, when the addition content of silicon ash is 12kg, 28d intensity reaches 41.2MPa, when the addition content of silicon ash is big When 24kg, the slump and divergence are obviously reduced, thus the parts by weight of silicon ash addition content be 12-24 part when, it is obtained mix Solidifying soil nature matter is optimal, and 28d intensity reaches as high as 49.4MPa, and setting time longest was up to 105 hours.It can be with by table 3 and table 5 To find out, the admixture of miberal powder is not very big to the contribution of concrete strength, and after miberal powder and silicon ash combination admixture are compound, concrete Intensity is greatly enhanced, while setting time is also not less than 105 hours.
Influence of the addition content of 5 silicon ash of table to concrete strength and setting time
Experimental group The slump Divergence 28d intensity/MPa Presetting period min Final setting time min
15 220 615 39.8 4990 6311
16 215 610 41.2 4998 6319
17 210 610 43.7 5004 6324
18 210 600 45.3 5012 6327
19 200 580 49.4 5021 6335
20 190 575 52.8 5028 6339
21 180 550 57.1 5036 6348
4th, influence of the addition content of retarder to concrete strength and setting time
Experimental group 22-31 lists reality by changing admixture quantity research concrete strength and the setting time of retarder, table 4 A group content for 22-31 each components is tested, performance detection is carried out to the concrete obtained according to this proportioning, the results are shown in Table 6.It can be with Find out, sand, rubble, water-reducing agent, silicon ash, water are certain and in the case that addition content is optimal in cement, flyash, miberal powder, mechanism, With the increase of slow setting agent content, the slump, divergence are basically unchanged, and 28d intensity is gradually reduced, and setting time gradually increases Long, when the addition content of retarder is 7.2-9kg, 28d intensity is more than 35MPa, and setting time is not less than 100 hours.
Influence of the addition content of 6 retarder of table to concrete strength and setting time
Experimental group The slump Divergence 28d intensity/MPa Presetting period min Final setting time min
22 210 600 58.2 3028 4452
23 215 610 55.7 3584 4985
24 210 600 52.3 4397 5574
25 210 590 50.5 4728 6024
26 210 600 48.4 4893 6193
27 210 600 45.3 5012 6327
28 215 610 43.7 5273 6531
29 210 600 40.2 5597 6896
30 220 615 35.5 6018 7326
31 220 620 29.3 6750 8025
Flyash can replace part of cement, have certain facilitation to late strength of concrete contribution.Flyash has There is certain activity, the active component in flyash can be combined with hydrolysis product of cement, play certain intensity.Simultaneously because The secondary hydration of flyash so that concrete density improves, and interfacial structure is improved so that late strength of concrete increases It is larger.The micro aggregate effect of flyash increases concrete cylinder block strength but also concrete system is more closely knit.
After flyash replaces part of cement, the active component in one side gelling system shared by cement reduces, initial stage water Change product to reduce, concrete coagulation firm time is postponed.On the other hand, flyash itself is needed without the hydraulicity, flyash in alkali Property conditionity its hide activity can be excited, generate hydrated product.In concrete, active component SiO in flyash2With Al2O3Need to be the Ca (OH) released with clinker aquation2, hair, which occurs, should produce hydrated calcium silicate and drated calcium aluminate.Its Hydration reaction lags, so that whole system setting time extends.
S95 grades of miberal powder activity are higher, are capable of providing the intensity of more than 95% strength of cement.Its aquation is slower simultaneously, thereafter Phase hydrated product effectively filling concrete aquation gap, increase body compactness can improve concrete strength.Therefore, miberal powder pair Late strength of concrete has larger contribution.Miberal powder can also effectively reduce the heat of hydration of concrete, reduce concrete internal temperature, On the one hand internal-external temperature difference can be reduced, avoids the appearance of Temperature Cracks, improve the durability of concrete.On the other hand, internal temperature The reduction of degree has the aquation of concrete certain inhibiting effect, can postpone the setting time of concrete to a certain extent.
Silicon ash can effectively improve the later strength of concrete due to its filing effect and volcano ash effect, in concrete To smaller to 1-3 days intensity effects of concrete after incorporation silicon ash, influence in 3-28 days is gradually apparent, and volume effect at 5% is outstanding It is notable.Silicon ash has the setting time of concrete certain retarding action.
" three mix " is carried out to flyash, miberal powder, silicon ash in concrete of the present invention, it is very big to the quality fluctuation of concrete, this Invention to sand, rubble, water-reducing agent, retarder, water in silicon ash, cement, flyash, miberal powder, mechanism by carrying out rational proportion, respectively The obtained concrete 28d intensity that cooperates between raw material is more than 40MPa, and setting time is more than 100 hours, more existing super Retarded concrete intensity improves 50%, and setting time improves 25%-65%.
Embodiment 1：
A kind of ultra-retardation concrete, including following raw material：Lafarge PO42.5 cement 260kg, F II grade of flyash of class 30kg, S95 grades of miberal powder 70kg, apparent density 2200kg/m3, specific surface area 25000m2The silicon ash 12kg of/kg, polycarboxylic acids are high Performance water-reducing agent 7kg, upper sea route add chemical industry VF-26 retarder 7.2kg, sand 750kg, rubble 950kg, water 170kg in mechanism.Institute The ultra-retardation concrete 28d intensity obtained is 41.2MPa, final setting time 6237min.
Embodiment 2：
A kind of ultra-retardation concrete, including following raw material：PO42.5 cement 280kg, F class II grade of flyash 40kg, S95 Grade miberal powder 80kg, apparent density 2200kg/m3, specific surface area 25000m220 parts of the silicon ash of/kg, poly-carboxylic high-performance diminishing Agent 8kg, sea route add chemical industry VF-26 retarder 9kg, sand 770kg, rubble 978kg, water 172kg in mechanism.The extra retarded set of gained mixes Solidifying soil 28d intensity is 37.5MPa, final setting time 7285min.
Embodiment 3：
A kind of ultra-retardation concrete, including following raw material：Cement 290kg, flyash 45kg, miberal powder 100kg, silicon ash Sand 790kg, rubble 1000kg, water 180kg in 24kg, water-reducing agent 9kg, retarder 9kg, mechanism.Wherein, sand in mechanism meets Continuous grading, fineness modulus 2.3, clay content 3.0%, moisture content 0.4%, clod content are 1.0%；Rubble is averaged grain Diameter is 20mm, meets continuous grading, and needle, sheet-like particle content are 12%, and clay content 1.0%, clod content is 0.5%, is contained Water rate is 0.12%.The ultra-retardation concrete 28d intensity of gained is 47.8MPa, final setting time 6473min.

Claims (10)

1. a kind of ultra-retardation concrete, which is characterized in that include the raw material of following parts by weight：260-290 parts of cement, flyash 30-45 parts, it is 70-100 parts of miberal powder, 12-24 parts of silicon ash, 7-9 parts of water-reducing agent, 7.2-9 parts of retarder, 750-790 parts of Machine-made Sand, broken 950-1000 parts of stone, 170-180 parts of water.
2. a kind of ultra-retardation concrete according to claim 1, which is characterized in that include the raw material of following parts by weight：Water 280 parts of mud, 40 parts of flyash, 80 parts of miberal powder, 20 parts of silicon ash, 8 parts of water-reducing agent, 9 parts of retarder, 770 parts of Machine-made Sand, rubble 978 Part, 172 parts of water.
3. a kind of ultra-retardation concrete according to claim 1 or 2, which is characterized in that the Machine-made Sand is in mechanism Sand, meets continuous grading, fineness modulus 2.3-3.0, clay content≤3.0%, moisture content ＜ 0.5%, and clod content≤ 1.0%.
4. a kind of ultra-retardation concrete according to claim 1 or 2, which is characterized in that the cement is PO42.5 Cement.
5. a kind of ultra-retardation concrete according to claim 1 or 2, which is characterized in that the flyash is II grade of F classes Flyash.
6. a kind of ultra-retardation concrete according to claim 1 or 2, which is characterized in that the miberal powder is S95 grades of ore deposits Powder.
7. a kind of ultra-retardation concrete according to claim 1 or 2, which is characterized in that the apparent density of the silicon ash is 2200kg/m3, specific surface area 25000m2/kg。
8. a kind of ultra-retardation concrete according to claim 1 or 2, which is characterized in that the ballast grain sizes are 5-25mm, Meet continuous grading, needle, sheet-like particle content≤15%, clay content≤1.0%, clod content≤0.5%, moisture content ＜ 0.2%.
9. a kind of ultra-retardation concrete according to claim 1 or 2, which is characterized in that the water-reducing agent is high for polycarboxylic acids Performance water-reducing agent.
10. a kind of ultra-retardation concrete according to claim 1 or 2, which is characterized in that the retarder adds for upper sea route Chemical industry VF-26.
CN201810124544.7A 2018-02-07 2018-02-07 A kind of ultra-retardation concrete Pending CN108147752A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810124544.7A CN108147752A (en) 2018-02-07 2018-02-07 A kind of ultra-retardation concrete

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810124544.7A CN108147752A (en) 2018-02-07 2018-02-07 A kind of ultra-retardation concrete

Publications (1)

Publication Number Publication Date
CN108147752A true CN108147752A (en) 2018-06-12

Family

ID=62457138

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810124544.7A Pending CN108147752A (en) 2018-02-07 2018-02-07 A kind of ultra-retardation concrete

Country Status (1)

Country Link
CN (1) CN108147752A (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108623229A (en) * 2018-07-02 2018-10-09 深圳市东大洋建材有限公司 A kind of ultra-retardation concrete and preparation method thereof
CN109206093A (en) * 2018-08-31 2019-01-15 上海翟氏混凝土有限公司 A kind of high-flowing concrete mixture and preparation method thereof
CN109267501A (en) * 2018-09-04 2019-01-25 贾英新 A kind of rapid concrete construction method
CN109437696A (en) * 2018-12-14 2019-03-08 中铁四局集团第二工程有限公司 Super-retarding concrete and preparation method thereof
CN109942260A (en) * 2019-05-13 2019-06-28 武汉明华鸿昌新型建材有限责任公司 A kind of preparation method of the C50 high performance concrete prepared using silicon ash
CN111393084A (en) * 2020-03-25 2020-07-10 武汉联盟建筑混凝土有限公司 Delayed coagulation early strength concrete and preparation method thereof
CN111533512A (en) * 2020-05-08 2020-08-14 江苏省水利科学研究院 Preparation method of ductility delayed coagulation fine aggregate concrete with initial setting time of 48-72 h
CN111620630A (en) * 2020-06-23 2020-09-04 中建西部建设贵州有限公司 Super-long underwater pile foundation machine-made sand self-compacting concrete and preparation method thereof
CN111848057A (en) * 2020-08-09 2020-10-30 中建西部建设贵州有限公司 Self-compacting concrete for super-long underwater pile foundation and preparation method thereof
CN112110696A (en) * 2020-09-05 2020-12-22 武汉鑫云海混凝土有限公司 Concrete for super-retarding secondary structure 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
CN115353343A (en) * 2022-07-29 2022-11-18 华南理工大学 High-performance pile foundation concrete with super-long-time working performance and preparation method thereof
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
CN116199488A (en) * 2023-01-10 2023-06-02 中国地质大学（武汉） Phosphogypsum-based super-retarding mortar material and application thereof

Citations (3)

* Cited by examiner, † Cited by third party
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
CN103304204A (en) * 2013-06-28 2013-09-18 上海建工材料工程有限公司 Ultra-retarding, high-poisson ratio and slump keeping-adjustable C55 prestressed tension concrete
CN106946530A (en) * 2017-04-13 2017-07-14 天津金隅混凝土有限公司 Ultra-retardation concrete

Patent Citations (3)

* Cited by examiner, † Cited by third party
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
CN103304204A (en) * 2013-06-28 2013-09-18 上海建工材料工程有限公司 Ultra-retarding, high-poisson ratio and slump keeping-adjustable C55 prestressed tension concrete
CN106946530A (en) * 2017-04-13 2017-07-14 天津金隅混凝土有限公司 Ultra-retardation concrete

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
朱效荣等: "《混凝土工作性调整》", 31 May 2016, 中国建材工业出版社 *

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108623229A (en) * 2018-07-02 2018-10-09 深圳市东大洋建材有限公司 A kind of ultra-retardation concrete and preparation method thereof
CN109206093A (en) * 2018-08-31 2019-01-15 上海翟氏混凝土有限公司 A kind of high-flowing concrete mixture and preparation method thereof
CN109267501A (en) * 2018-09-04 2019-01-25 贾英新 A kind of rapid concrete construction method
CN109437696B (en) * 2018-12-14 2021-06-04 中铁四局集团第二工程有限公司 Super-retarding concrete and preparation method thereof
CN109437696A (en) * 2018-12-14 2019-03-08 中铁四局集团第二工程有限公司 Super-retarding concrete and preparation method thereof
CN109942260A (en) * 2019-05-13 2019-06-28 武汉明华鸿昌新型建材有限责任公司 A kind of preparation method of the C50 high performance concrete prepared using silicon ash
CN111393084A (en) * 2020-03-25 2020-07-10 武汉联盟建筑混凝土有限公司 Delayed coagulation early strength concrete and preparation method thereof
CN111533512A (en) * 2020-05-08 2020-08-14 江苏省水利科学研究院 Preparation method of ductility delayed coagulation fine aggregate concrete with initial setting time of 48-72 h
CN111533512B (en) * 2020-05-08 2022-07-26 江苏省水利科学研究院 Preparation method of ductility delayed coagulation fine aggregate concrete with initial setting time of 48-72 h
CN111620630A (en) * 2020-06-23 2020-09-04 中建西部建设贵州有限公司 Super-long underwater pile foundation machine-made sand self-compacting concrete and preparation method thereof
CN111848057A (en) * 2020-08-09 2020-10-30 中建西部建设贵州有限公司 Self-compacting concrete for super-long underwater pile foundation and preparation method thereof
CN111848057B (en) * 2020-08-09 2022-07-01 中建西部建设贵州有限公司 Self-compacting concrete for super-long underwater pile foundation and preparation method thereof
CN112110696A (en) * 2020-09-05 2020-12-22 武汉鑫云海混凝土有限公司 Concrete for super-retarding secondary structure and preparation method thereof
CN112110696B (en) * 2020-09-05 2022-10-04 武汉鑫云海混凝土有限公司 Concrete for super-retarding secondary structure
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
CN115353343A (en) * 2022-07-29 2022-11-18 华南理工大学 High-performance pile foundation concrete with super-long-time working performance and preparation method thereof
CN115353343B (en) * 2022-07-29 2023-09-26 华南理工大学 High-performance pile foundation concrete with ultra-long-time working performance and preparation method thereof
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
CN116199488A (en) * 2023-01-10 2023-06-02 中国地质大学（武汉） Phosphogypsum-based super-retarding mortar material and application thereof

Similar Documents

Publication Publication Date Title
CN108147752A (en) A kind of ultra-retardation concrete
Okoye et al. Effect of silica fume on the mechanical properties of fly ash based-geopolymer concrete
RU2544355C2 (en) Production of nanocement and nanocement
CN107257778B (en) Binder of solid inorganic compounds rich in alkaline earth metal oxides with phosphate activators
EP2842925B1 (en) Calcium sulfoaluminate composite binders
CN109608068A (en) A kind of cementitious material, the preparation method of precast concrete and precast concrete
CN104640823B (en) Agglutination material, activator and the method for preparing concrete
Zhang et al. Mechanical strength, water resistance and drying shrinkage of lightweight hemihydrate phosphogypsum-cement composite with ground granulated blast furnace slag and recycled waste glass
US20140199488A1 (en) Cement Hydrate Products For Sprayed Concrete
CN111620624B (en) Self-compacting concrete and preparation method thereof
CN105948619A (en) Anti-crack mass concrete prepared by utilizing fly ash and mineral powder double-mixing technology
JP3894780B2 (en) Cement grout composition
EP2842924A1 (en) Composite binder comprising calcium sulfoaluminate cement and calcium nitrate or calcium nitrite
Lesovik et al. Four-component high-strength polymineral binders
AU2017436163A1 (en) Methods for producing a cement composition
Heidari et al. Reusing waste ceramic and waste sanitary ware in concrete as pozzolans with nano-silica and metakaolin
CN115893967A (en) Low-carbon type multi-element composite early-strength steam-curing-free concrete prefabricated part and preparation method thereof
Li et al. A study of high-performance slag-based composite admixtures
Murtaza et al. Performance analysis of self compacting concrete by incorporating fly ash, coal gangue powder, cement kiln dust and recycled concrete powder by absolute volume method
CN108328996A (en) A kind of lightweight concrete, raw material proportioning and preparation method thereof
CN112592088A (en) Concrete micro-expansion reinforcing agent and preparation method thereof, concrete and application thereof
CN116947429A (en) Solid waste source high-activity powder seat slurry and preparation method thereof
KR20120119676A (en) Shrinkage-reducing and ultra high early strength cement binder composition and method for producing secondary goods of precast concrete using the same
CN108530015A (en) A kind of steamed brick and preparation method thereof using bauxite gangue manufacture
CN115057667A (en) Self-compacting concrete and production process 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
RJ01 Rejection of invention patent application after publication

Application publication date: 20180612

RJ01 Rejection of invention patent application after publication