CN106277887A - Cement expansive material - Google Patents
Cement expansive material Download PDFInfo
- Publication number
- CN106277887A CN106277887A CN201610701444.7A CN201610701444A CN106277887A CN 106277887 A CN106277887 A CN 106277887A CN 201610701444 A CN201610701444 A CN 201610701444A CN 106277887 A CN106277887 A CN 106277887A
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- parts
- calcium
- 30min
- red mud
- sodium
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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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
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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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
- C04B20/023—Chemical treatment
-
- 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
-
- 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
- C04B2201/52—High compression strength concretes, i.e. with a compression strength higher than about 55 N/mm2, e.g. reactive powder concrete [RPC]
Abstract
The invention discloses a kind of cement expansive material, be made up of each component of following weight: ca aluminosilicate 10～15 parts, calcium sulphoaluminate 20～30 parts, iron sulfate 5～9 parts, solid sulfur waste residue 20～25 parts, red mud 15～20 parts, modified oxidized calcium 6～8 parts, magnesium oxide 4～6 parts, sodium methyl silicate 4～8 parts, triethanolamine 3～5 parts, azodicarbonamide 0.1～0.3 part, sodium gluconate 0.5～0.7 part, sodium laurylsulfate 2～4 parts, Polyethylene Glycol 0.4～0.6 part, polycarboxylate water-reducer 1～3 parts, modified pyrophyllite powder 2～6 parts, nano-calcium carbonate 1～3 parts.The present invention has the advantages such as high intensity, good compensation ability and regulation and control calcium oxide reaction, is rising a kind of concrete admixture.
Description
Technical field
The present invention relates to a kind of cement expansive material, belong to construction material technical field of concrete additives.
Background technology
Concrete is most popular construction material, along with the development of science and technology, is also constantly being furtherd investigate, property
Can improve and development.In recent years, the contraction of concrete and problem of Cracking have become the focus of research, and this is due at cement setting
At the hardening initial stage, the change of moisture loss and temperature, humidity easily causes volume contraction, is restricted and drawing of producing shrinking
When stress exceedes the tensile strength of concrete self, cement concrete easily ftractures；Meanwhile, the concrete after cracking, carrying
Ability drastically reduces；Furthermore, the infiltration of moisture can deteriorate the durability of concrete further, causes steel bar corrosion, structural deterioration,
Reduce the serviceability of concrete.
From material angle, can be solved by incorporation fiber, fine-ground fly-ash or slag powders and extender in concrete
The certainly contraction of concrete and problem of Cracking.But, fiber mixing concrete is cumbersome, and cost is high；Fine-ground fly-ash or slag
Powder volume is big, and material requested cost is high, and can not be fully solved the shrinkage cracking of concrete.But, extender is a kind of chemistry
Additive, mixes and is added in concrete, when concrete coagulation hardens, expand and block pore crack, improve coagulation
Soil internal structure, plays to compensate to shrink producing prestressing force with tension reinforcing steel bar and being sufficient filling with the effect in cement gap.Therefore, swollen
Swollen dose is a kind of effective means of the contraction and the problem of Cracking that solve concrete.
At present, the main extender used has calcium sulphoaluminate type, calcium oxide type and oxidation magnesium types, and its principle is logical
Cross the hydrated product with water or cement in cement hydration process such as aluminium sulfate, calcium oxide, magnesium oxide and react generation dilatancy
Material.China Patent Publication No.: CN104386938A discloses entitled " multi-functional for Overlong Concrete Structure jointless construction
Extender " patent, the component of this extender and ratio of weight and number thereof are respectively as follows: sulfoaluminate clinker 44-67 part；Anhydrite
15-25 part；Magnesium oxide 5-8 part；Calcium oxide 5-10 part；Tartaric acid 1-2.5 part；Dispersant 1.5-2.5 part；Sodium silicate 3.5-5.5
Part；Sodium carbonate 2.5-7.5 part.Although it can obtain certain intensity and compensate contractility, but can't be satisfactory.With
Time calcium oxide aquation rapid, major part expands the plastic stage occurred before concrete produces intensity, and expansion is inconspicuous.
Therefore, it is necessary for continuing to explore with research cement expansive material.
Summary of the invention
For the intensity of cement expansive material, compensation ability and the too fast deficiency of calcium oxide hydration reaction in above-mentioned prior art
Technical problem, the technical problem to be solved be propose one can be effectively improved extender intensity and compensate energy
Power, and the cement expansive material of calcium oxide reaction can be regulated and controled.
A kind of cement expansive material, is made up of each component of following weight: ca aluminosilicate 10～15 parts, sulfur aluminic acid
Calcium 20～30 parts, iron sulfate 5～9 parts, solid sulfur waste residue 20～25 parts, red mud 15～20 parts, modified oxidized calcium 6～8 parts, magnesium oxide
4～6 parts, sodium methyl silicate 4～8 parts, triethanolamine 3～5 parts, azodicarbonamide 0.1～0.3 part, sodium gluconate 0.5～
0.7 part, sodium laurylsulfate 2～4 parts, Polyethylene Glycol 0.4～0.6 part, polycarboxylate water-reducer 1～3 parts, modified pyrophyllite powder 2
～6 parts, nano-calcium carbonate 1～3 parts.
Preferably,
A kind of cement expansive material, is made up of each component of following weight: ca aluminosilicate 12 parts, calcium sulphoaluminate 25
Part, 7 parts of iron sulfate, solid 22 parts of sulfur waste residue, red mud 18 parts, modified oxidized calcium 7 parts, magnesium oxide 5 parts, sodium methyl silicate 6 parts, three second
Hydramine 4 parts, azodicarbonamide 0.2 part, sodium gluconate 0.6 part, sodium laurylsulfate 3 parts, Polyethylene Glycol 0.5 part, polycarboxylic acids
Water reducer 2 parts, modified pyrophyllite powder 4 parts, nano-calcium carbonate 2 parts.
Described red mud is to follow the steps below process:
1) first by red mud 100～110 DEG C of drying, then by weight for red mud: ardealite=5:1 material, ball milling mixes
Close 20～30min；
2) add 5～9 parts of citric acids, ball milling mixing 20～30min, then heated and boiled 10～20min；
3) add 40～50 parts of ethanol, ball milling mixing 20～30min, after standing 2～4h, filter, wash and dry；
4) after 700～800 DEG C of calcinings 1～2h, natural cooling, and it is ground into 200～300 mesh, i.e. available modified red
Mud.
Described modified oxidized calcium is made up of each component of following weight: calcium oxide 40～50 parts, stearic acid 4
～8 parts, polyvinyl alcohol 7～9 parts, methylcellulose 5～9 parts, nano magnesia 1～3 parts, dehydrated alcohol 100～120 parts.
Described modified oxidized calcium is to follow the steps below process:
1) first calcium oxide is scattered in ethanol, soaks 20～30min and be placed in a water bath, and be heated to 90～100
℃；
2) it is sequentially added into stearic acid and polyvinyl alcohol stirs, after being then cooled to 30～40 DEG C, add methylcellulose
Continue to stir；
3) adding nano magnesia, being placed in frequency is on 20～30KHz ultrasonic machines after ultrasonic 20～30min, concentrates, dries
Dry, i.e. can get modified oxidized calcium.
Described modified pyrophyllite powder is to follow the steps below process:
1) it is pyrophyllite powder by weight ratio: the material of dehydrated alcohol=1:5, ball milling mixing 1～2h；
2) 6～8 parts of calcium chloride and 4～6 parts of aluminum chloride, ball milling mixing 20～30min it are sequentially added into；
3) it is sequentially added into 0.4～0.6 part of titanate coupling agent and is sequentially added into 0.1～0.3 part of polymethyl silicane coupling agent,
Ball milling mixing 20～30min, i.e. available modified pyrophyllite powder.
Compared with prior art, the invention has the beneficial effects as follows:
1, ca aluminosilicate is compounded with calcium sulphoaluminate by the present invention, enhance expansion effect, meanwhile, have also combined oxygen
Change calcium and magnesium oxide expansion sources, synergism occurs, improve compensation ability.Furthermore, Gu sulfur waste residue mainly contains SiO2、Al2O3、
Fe2O3、CaO、SO3, f-CaO, and containing a certain amount of anhydrous CaSO4With a small amount of MgO etc., in concrete, hydration reaction generates
Substantial amounts of entringite and cause Behavior of Hardened Cement Paste to expand, improve compensation ability further.Additionally, red mud has cementing aperture frame shape knot
Containing Al in the features, and its composition such as structure, hole are many, specific surface area is big2O3、Fe2O3, CaO etc., by changed red mud, not only drop
Alkali content in low red mud, improves the intrinsic activity of red mud, but also improves compensation ability and early strength, later strength, enter
And make the performance of concrete be improved, improve market value.
2, by modified oxidized calcium, make calcium oxide surface form composite membrane, efficiently controlled hydration rate, slow down swollen
Swollen speed, makes major part expand the plastic stage occurred after concrete produces intensity, improves expansion.Meanwhile, methyl
Cellulose has water retention, slowly discharges moisture along with aquation, provides water source for calcium oxide, promotes that expansion is sent out
Raw.Furthermore, compounding with nano magnesia, the expansion time can be extended, effective compensation concrete early-age shrinkage and later stage shrink,
The most pre-cracking-proof produces.Additionally, sodium gluconate plays deferred action, calcium oxide in solid sulfur waste residue and red mud can be slowed down and expand
Effect, makes the expansion effect of extender more preferably.
3, iron sulfate can not only provide sulfate radical, promotes the formation of entringite, strengthens expansion effect, it is also possible to forms hydrogen-oxygen
Change ferrum colloid, improve the water resistance of concrete；Sodium methyl silicate has good penetrant crystalline and micro-expansibility, can not only
Improve the intensity of concrete, moreover it is possible to improve the compensation performance of extender；Azodicarbonamide plays foaming effect, can be at concrete
Middle formation tiny, equally distributed and after curing remain to keep microbubble, can compensate for raw material components sedimentation shrink；Receive
Rice calcium carbonate can be induced hydration reaction and improve the microstructure of hydrated product, improves the comprcssive strength of concrete and closely knit
Property, concrete can be made again to possess self-regeneration function, be greatly reduced the defects such as crackle, extend the life-span, moreover it is possible to modified polycarboxylic acid
Water reducer, improves effect of water reducer.
4, by the coupling agent modified pyrophyllite powder of calcium chloride, aluminum chloride, titanate coupling agent and polymethyl silicane so that it is tool
There are good dispersibility and grinding aid, improve the dispersibility of raw material, improve cement expansive material intensity and compensation ability.
5, the present invention makes full use of solid sulfur waste residue and red mud, not only saves engineering cost, and the expansion character of excellence.
Detailed description of the invention
The present invention provides a kind of cement expansive material, to achieve the object of the present invention, technical scheme and effect is clearer,
Clearly, the present invention is described in more detail below.
A kind of cement expansive material, is made up of each component of following weight: ca aluminosilicate 10～15 parts, sulfur aluminic acid
Calcium 20～30 parts, iron sulfate 5～9 parts, solid sulfur waste residue 20～25 parts, red mud 15～20 parts, modified oxidized calcium 6～8 parts, magnesium oxide
4～6 parts, sodium methyl silicate 4～8 parts, triethanolamine 3～5 parts, azodicarbonamide 0.1～0.3 part, sodium gluconate 0.5～
0.7 part, sodium laurylsulfate 2～4 parts, Polyethylene Glycol 0.4～0.6 part, polycarboxylate water-reducer 1～3 parts, modified pyrophyllite powder 2
～6 parts, nano-calcium carbonate 1～3 parts；
Described red mud is to follow the steps below process:
1) first by red mud 100～110 DEG C of drying, then by weight for red mud: ardealite=5:1 material, ball milling mixes
Close 20～30min；
2) add 5～9 parts of citric acids, ball milling mixing 20～30min, then heated and boiled 10～20min；
3) add 40～50 parts of ethanol, ball milling mixing 20～30min, after standing 2～4h, filter, wash and dry；
4) after 700～800 DEG C of calcinings 1～2h, natural cooling, and it is ground into 200～300 mesh, i.e. available modified red
Mud；
Described modified oxidized calcium is made up of each component of following weight: calcium oxide 40～50 parts, stearic acid 4
～8 parts, polyvinyl alcohol 7～9 parts, methylcellulose 5～9 parts, nano magnesia 1～3 parts, dehydrated alcohol 100～120 parts；
Described modified oxidized calcium is to follow the steps below process:
1) first calcium oxide is scattered in ethanol, soaks 20～30min and be placed in a water bath, and be heated to 90～100
℃；
2) it is sequentially added into stearic acid and polyvinyl alcohol stirs, after being then cooled to 30～40 DEG C, add methylcellulose
Continue to stir；
3) adding nano magnesia, being placed in frequency is on 20～30KHz ultrasonic machines after ultrasonic 20～30min, concentrates, dries
Dry, i.e. can get modified oxidized calcium.
Described modified pyrophyllite powder is to follow the steps below process:
1) it is pyrophyllite powder by weight ratio: the material of dehydrated alcohol=1:5, ball milling mixing 1～2h；
2) 6～8 parts of calcium chloride and 4～6 parts of aluminum chloride, ball milling mixing 20～30min it are sequentially added into；
3) it is sequentially added into 0.4～0.6 part of titanate coupling agent and is sequentially added into 0.1～0.3 part of polymethyl silicane coupling agent,
Ball milling mixing 20～30min, i.e. available modified pyrophyllite powder.
Embodiment 1
A kind of cement expansive material, is made up of each component of following weight: ca aluminosilicate 12 parts, calcium sulphoaluminate 25
Part, 7 parts of iron sulfate, solid 22 parts of sulfur waste residue, red mud 18 parts, modified oxidized calcium 7 parts, magnesium oxide 5 parts, sodium methyl silicate 6 parts, three second
Hydramine 4 parts, azodicarbonamide 0.2 part, sodium gluconate 0.6 part, sodium laurylsulfate 3 parts, Polyethylene Glycol 0.5 part, polycarboxylic acids
Water reducer 2 parts, modified pyrophyllite powder 4 parts, nano-calcium carbonate 2 parts.
Embodiment 2
A kind of cement expansive material, is made up of each component of following weight: ca aluminosilicate 10 parts, calcium sulphoaluminate 20
Part, 5 parts of iron sulfate, solid 20 parts of sulfur waste residue, red mud 15 parts, modified oxidized calcium 6 parts, magnesium oxide 4 parts, sodium methyl silicate 4 parts, three second
Hydramine 3 parts, azodicarbonamide 0.1 part, sodium gluconate 0.5 part, sodium laurylsulfate 2 parts, Polyethylene Glycol 0.4 part, polycarboxylic acids
Water reducer 1 part, modified pyrophyllite powder 2 parts, nano-calcium carbonate 1 part.
Embodiment 3
A kind of cement expansive material, is made up of each component of following weight: ca aluminosilicate 15 parts, calcium sulphoaluminate 30
Part, 9 parts of iron sulfate, solid 25 parts of sulfur waste residue, red mud 20 parts, modified oxidized calcium 8 parts, magnesium oxide 6 parts, sodium methyl silicate 8 parts, three second
Hydramine 5 parts, azodicarbonamide 0.3 part, sodium gluconate 0.7 part, sodium laurylsulfate 4 parts, Polyethylene Glycol 0.6 part, polycarboxylic acids
Water reducer 3 parts, modified pyrophyllite powder 6 parts, nano-calcium carbonate 3 parts.
Comparative example 1 (comparative example 1 is only that with the difference of embodiment 1, the red mud in comparative example 1 not through modification,
But direct use, remaining is with embodiment 1).
(comparative example 2 is only that comparative example 2 with the difference of embodiment 1, and the calcium oxide in comparative example 2 is not at modified
Reason, but directly use, remaining is with embodiment 1).
(comparative example 3 is only that comparative example 3 with the difference of embodiment 1, and the pyrophillite in comparative example 3 is not at modified
Reason, but directly use, remaining is with embodiment 1).
Cement expansive material prepared to above-described embodiment 1-3, comparative example 1-3 and background technology (CN104386938A) is adopted
Testing by prior art, test result is as shown in table 1 below:
Table 1 cement expansive material test result
It can be seen that for the cement expansive material prepared of different parameters is relative to background technology, have that volume is low, expand effect
The best and intensity advantages of higher, is rising a kind of concrete admixture.
Certainly, it is that the preferred embodiments of the disclosure is described in detail above, not limits the present invention with this
Practical range, all principles under this invention, structure and structure made equivalence change, the protection of the present invention all should be covered by
In the range of.
Claims (6)
1. a cement expansive material, it is characterised in that: it is made up of each component of following weight: ca aluminosilicate 10～15
Part, calcium sulphoaluminate 20～30 parts, iron sulfate 5～9 parts, solid sulfur waste residue 20～25 parts, red mud 15～20 parts, modified oxidized calcium 6～8
Part, magnesium oxide 4～6 parts, sodium methyl silicate 4～8 parts, triethanolamine 3～5 parts, azodicarbonamide 0.1～0.3 part, Fructus Vitis viniferae acid
Sodium 0.5～0.7 part, sodium laurylsulfate 2～4 parts, Polyethylene Glycol 0.4～0.6 part, polycarboxylate water-reducer 1～3 parts, modified leaf
Cured stone powder 2～6 parts, nano-calcium carbonate 1～3 parts.
Cement expansive material the most according to claim 1, it is characterised in that: by each component system of following weight
Become: ca aluminosilicate 12 parts, calcium sulphoaluminate 25 parts, 7 parts of iron sulfate, solid 22 parts of sulfur waste residue, red mud 18 parts, modified oxidized calcium 7 parts, oxygen
Change 5 parts of magnesium, sodium methyl silicate 6 parts, triethanolamine 4 parts, azodicarbonamide 0.2 part, sodium gluconate 0.6 part, lauryl alcohol sulphuric acid
3 parts of sodium, Polyethylene Glycol 0.5 part, polycarboxylate water-reducer 2 parts, modified pyrophyllite powder 4 parts, nano-calcium carbonate 2 parts.
Cement expansive material the most according to claim 1, it is characterised in that: described red mud is to follow the steps below
Process:
1) first by red mud 100～110 DEG C of drying, then by weight for red mud: ardealite=5:1 material, ball milling mixing 20
～30min；
2) add 5～9 parts of citric acids, ball milling mixing 20～30min, then heated and boiled 10～20min；
3) add 40～50 parts of ethanol, ball milling mixing 20～30min, after standing 2～4h, filter, wash and dry；
4) after 700～800 DEG C of calcinings 1～2h, natural cooling, and it is ground into 200～300 mesh, i.e. can get changed red mud.
Cement expansive material the most according to claim 1, it is characterised in that: described modified oxidized calcium is by following weight
Each component of part proportioning is made: calcium oxide 40～50 parts, stearic acid 4～8 parts, polyvinyl alcohol 7～9 parts, methylcellulose 5～9
Part, nano magnesia 1～3 parts, dehydrated alcohol 100～120 parts.
Cement expansive material the most according to claim 1, it is characterised in that: described modified oxidized calcium is according to following step
Suddenly process:
1) first calcium oxide is scattered in ethanol, soaks 20～30min and be placed in a water bath, and be heated to 90～100 DEG C；
2) it is sequentially added into stearic acid and polyvinyl alcohol stirs, add methylcellulose after being then cooled to 30～40 DEG C and continue
Stir；
3) adding nano magnesia, being placed in frequency is on 20～30KHz ultrasonic machines after ultrasonic 20～30min, concentrates, dries,
I.e. can get modified oxidized calcium.
Cement expansive material the most according to claim 1, it is characterised in that: described modified pyrophyllite powder is according to following
Step processes:
1) it is pyrophyllite powder by weight ratio: the material of dehydrated alcohol=1:5, ball milling mixing 1～2h；
2) 6～8 parts of calcium chloride and 4～6 parts of aluminum chloride, ball milling mixing 20～30min it are sequentially added into；
3) it is sequentially added into 0.4～0.6 part of titanate coupling agent and is sequentially added into 0.1～0.3 part of polymethyl silicane coupling agent, ball milling
Mixing 20～30min, i.e. available modified pyrophyllite powder.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107337396A (en) * | 2017-08-28 | 2017-11-10 | 宿松县尚鼎建材有限公司 | A kind of high-intensity anti-cracking concrete and preparation method thereof |
| CN108793798A (en) * | 2018-06-28 | 2018-11-13 | 贵阳绿洲苑建材有限公司 | Cement expansive material and preparation method thereof based on trade waste |
| CN110451847A (en) * | 2019-07-04 | 2019-11-15 | 西安建祥建材科技有限公司 | A kind of modified calcium sulphoaluminate-calcium oxide cement expansive material and preparation method thereof |
| CN110963744A (en) * | 2019-12-16 | 2020-04-07 | 湖北工业大学 | Liquid expanding agent capable of expanding step by step and preparation method thereof |
| CN111875285A (en) * | 2020-08-18 | 2020-11-03 | 衡阳市九州建材有限公司 | Concrete mortar anti-cracking additive and preparation method thereof |
| CN111892328A (en) * | 2020-08-18 | 2020-11-06 | 衡阳市九州建材有限公司 | Efficient accelerator for building construction and preparation process thereof |
| CN112624691A (en) * | 2020-12-18 | 2021-04-09 | 马鞍山市国林建材有限公司 | Production method of high-efficiency low-emission silent crushing agent for producing Z-shaped concrete hollow blocks |
| CN113173725A (en) * | 2021-05-26 | 2021-07-27 | 广东粤盛特种建材有限公司 | Efficient concrete expansion anti-cracking waterproof agent and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101913790A (en) * | 2010-08-27 | 2010-12-15 | 西南科技大学 | Concrete expansion agent containing circulating fluidized bed combustion coal solid sulfur clinker |
| CN104193266A (en) * | 2014-08-21 | 2014-12-10 | 桂林华越环保科技有限公司 | Cement expansive material with harmonious coordinated development of expansion rate and concrete strength |
| CN104446117A (en) * | 2014-11-18 | 2015-03-25 | 桂林华越环保科技有限公司 | Concrete expansion agent |
| CN104446081A (en) * | 2014-11-27 | 2015-03-25 | 上海申御特种建材有限公司 | Concrete expansion agent and preparation method thereof |
-
2016
- 2016-08-19 CN CN201610701444.7A patent/CN106277887B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101913790A (en) * | 2010-08-27 | 2010-12-15 | 西南科技大学 | Concrete expansion agent containing circulating fluidized bed combustion coal solid sulfur clinker |
| CN104193266A (en) * | 2014-08-21 | 2014-12-10 | 桂林华越环保科技有限公司 | Cement expansive material with harmonious coordinated development of expansion rate and concrete strength |
| CN104446117A (en) * | 2014-11-18 | 2015-03-25 | 桂林华越环保科技有限公司 | Concrete expansion agent |
| CN104446081A (en) * | 2014-11-27 | 2015-03-25 | 上海申御特种建材有限公司 | Concrete expansion agent and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 李松林: "《混凝土设计与施工简明手册》", 31 July 2011, 北京：中国电力出版社 * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107337396A (en) * | 2017-08-28 | 2017-11-10 | 宿松县尚鼎建材有限公司 | A kind of high-intensity anti-cracking concrete and preparation method thereof |
| CN108793798A (en) * | 2018-06-28 | 2018-11-13 | 贵阳绿洲苑建材有限公司 | Cement expansive material and preparation method thereof based on trade waste |
| CN110451847A (en) * | 2019-07-04 | 2019-11-15 | 西安建祥建材科技有限公司 | A kind of modified calcium sulphoaluminate-calcium oxide cement expansive material and preparation method thereof |
| CN110963744A (en) * | 2019-12-16 | 2020-04-07 | 湖北工业大学 | Liquid expanding agent capable of expanding step by step and preparation method thereof |
| CN110963744B (en) * | 2019-12-16 | 2021-09-03 | 湖北工业大学 | Liquid expanding agent capable of expanding step by step and preparation method thereof |
| CN111875285A (en) * | 2020-08-18 | 2020-11-03 | 衡阳市九州建材有限公司 | Concrete mortar anti-cracking additive and preparation method thereof |
| CN111892328A (en) * | 2020-08-18 | 2020-11-06 | 衡阳市九州建材有限公司 | Efficient accelerator for building construction and preparation process thereof |
| CN112624691A (en) * | 2020-12-18 | 2021-04-09 | 马鞍山市国林建材有限公司 | Production method of high-efficiency low-emission silent crushing agent for producing Z-shaped concrete hollow blocks |
| CN113173725A (en) * | 2021-05-26 | 2021-07-27 | 广东粤盛特种建材有限公司 | Efficient concrete expansion anti-cracking waterproof agent and preparation method thereof |
| CN113173725B (en) * | 2021-05-26 | 2023-02-07 | 广东粤盛特种建材有限公司 | Efficient concrete expansion anti-cracking waterproof agent and preparation method thereof |
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