CN101126018B - Low-temperature hardening scurry-proof cement slurry for well cementing - Google Patents
Low-temperature hardening scurry-proof cement slurry for well cementing Download PDFInfo
- Publication number
- CN101126018B CN101126018B CN 200610089274 CN200610089274A CN101126018B CN 101126018 B CN101126018 B CN 101126018B CN 200610089274 CN200610089274 CN 200610089274 CN 200610089274 A CN200610089274 A CN 200610089274A CN 101126018 B CN101126018 B CN 101126018B
- Authority
- CN
- China
- Prior art keywords
- weight part
- low
- weight
- agent
- early strength
- 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.)
- Active
Links
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention relates to a low temperature early strength channeling control cement slurry, comprising portland cement, water, light strengthening agent, low-temperature early strength agent, channeling control agent, rheological performance adjusting agent and defoaming agent; wherein, the light strengthening agent consists of glass beads, fine cement, fine silicon powder and superfine, high-activity slag; the low-temperature early strengthening agent consists of sodium silicate, calcium sulphate and triethanolamine; the channeling control agent consists of polyvinyl alcohol, gypsum, poly naphthalene sulphonic sodium and borax; the rheological performance adjusting agent consists of sodium polystyrene sulfonate and calcium lignosulfonate; the defoaming agent consists of poly glycol dipropionate ether. The invention has the advantages of fast expanding speed of intensity in low temperature, strong channeling control and leakage resistance performance, low water lost and good rheological performance, and can be used as cementing material in low-temperature air layer, activity water layer and leakiness ground layer.
Description
Technical field
The present invention relates to a kind of low-temperature hardening scurry-proof cement slurry for well cementing, be used in particular for the low temperature gas-bearing formation, enliven water layer, the well cementing material on leakiness stratum.
Background technology
In the existing well cementing operation; There are shallow gas and waterbearing stratum, the face of land, the stratum bearing capacity is low and the winter job temperature is low situation; Make the cementitious grout strength development slow; The weightlessness that grout is waited when coagulating causes fluid column pressure to reduce, and very easily causes the generation of aqueous vapor channelling, has had a strong impact on cementing quality.To the problems referred to above, the method for the existing raising cement slurry density that adopts, its weak point is very easily to cause grout to formation leakage; The existing method that adds setting accelerator such as calcium chloride that adopts can shorten cement slurry thickening time, but can not significantly improve the development of cementitious grout intensity; Can not effectively prevent channelling; And volume can produce backward-acting when excessive, brings undesirable action to well cementing operation.
Summary of the invention
The technical problem that the present invention will solve: avoid above-mentioned deficiency of the prior art; Provide that a kind of to be used under low temperature well cementing operation, the low temperature strength development fast, curing time is short, can effectively prevent channelling, prevent to miss, the low-temperature hardening scurry-proof cement slurry for well cementing of reasonable price.
The technical scheme that the present invention adopts: low-temperature hardening scurry-proof cement slurry for well cementing; It is characterized in that being made up of 100 weight part silicate cementing concretes, 50-95 weight parts water, 10-100 weight part lightweight toughener, 3-8 weight part low-temperature early strength agent, 3-8 weight part anti-migration agent, 0.2-1 weight part rheological property regulator, 0.1-0.3 weight part skimmer, wherein the lightweight toughener is made up of glass microballon, 40-60 weight part 40-100 μ m ultrafine high activity slag, 20-30 weight part 0.5-3 μ m fine cement and the fine silica flour of 10-20 weight part 0.02-0.5 μ m of 100 weight part 150-200 μ m; Low-temperature early strength agent is made up of 100 weight part sulfuric acid calcium powders, 80-100 weight part trolamine, 40-60 weight part water glass; Anti-migration agent is made up of the borax that 100 weight part 20-80 order Z 150PH, the gypsum of 150-300 weight part, 200-300 weight part gather sodium naphthalene sulfonate and 5-10 weight part; The rheological property regulator is made up of 100 weight part Lewatits and 80-100 weight part calcium lignin sulphonate; Skimmer is made up of the polyoxyethylene glycol ether.
More excellent low-temperature hardening scurry-proof cement slurry for well cementing; It is characterized in that being made up of 100 weight part silicate cementing concretes, 50 weight parts waters, 10 weight part lightweight tougheners, 4 weight part low-temperature early strength agents, 3 weight part anti-migration agents, 0.2 weight part rheological property regulator, 0.2 weight part skimmer, wherein the lightweight toughener is made up of glass microballon, 50 weight part 40-100 μ m ultrafine high activity slags, 25 weight part 0.5-3 μ m fine cements and the fine silica flour of 15 weight part 0.02-0.5 μ m of 100 weight part 150-200 μ m; Low-temperature early strength agent is made up of 100 weight part sulfuric acid calcium powders, 80 weight part trolamines, 50 weight part water glass; Anti-migration agent is made up of the borax that 100 weight part 20-80 order Z 150PH, the gypsum of 200 weight parts, 200 weight parts gather sodium naphthalene sulfonate and 10 weight parts; The rheological property regulator is made up of 100 weight part Lewatits and 100 weight part calcium lignin sulphonates; Skimmer is made up of the polyoxyethylene glycol ether.
More excellent low-temperature hardening scurry-proof cement slurry for well cementing; It is characterized in that being made up of 100 weight part silicate cementing concretes, 70 weight parts waters, 50 weight part lightweight tougheners, 4 weight part low-temperature early strength agents, 3 weight part anti-migration agents, 0.5 weight part rheological property regulator, 0.2 weight part skimmer, wherein the lightweight toughener is made up of glass microballon, 50 weight part 40-100 μ m ultrafine high activity slags, 25 weight part 0.5-3 μ m fine cements and the fine silica flour of 15 weight part 0.02-0.5 μ m of 100 weight part 150-200 μ m; Low-temperature early strength agent is made up of 100 weight part sulfuric acid calcium powders, 80 weight part trolamines, 50 weight part water glass; Anti-migration agent is made up of the borax that 100 weight part 20-80 order Z 150PH, the gypsum of 200 weight parts, 200 weight parts gather sodium naphthalene sulfonate and 10 weight parts; The rheological property regulator is made up of 100 weight part Lewatits and 100 weight part calcium lignin sulphonates; Skimmer is made up of the polyoxyethylene glycol ether.
More excellent low-temperature hardening scurry-proof cement slurry for well cementing; It is characterized in that being made up of 100 weight part silicate cementing concretes, 60 weight parts waters, 30 weight part lightweight tougheners, 4 weight part low-temperature early strength agents, 3 weight part anti-migration agents, 0.5 weight part rheological property regulator, 0.2 weight part skimmer, wherein the lightweight toughener is made up of glass microballon, 50 weight part 40-100 μ m ultrafine high activity slags, 25 weight part 0.5-3 μ m fine cements and the fine silica flour of 15 weight part 0.02-0.5 μ m of 100 weight part 150-200 μ m; Low-temperature early strength agent is made up of 100 weight part sulfuric acid calcium powders, 80 weight part trolamines, 50 weight part water glass; Anti-migration agent is made up of the borax that 100 weight part 20-80 order Z 150PH, the gypsum of 200 weight parts, 200 weight parts gather sodium naphthalene sulfonate and 10 weight parts; The rheological property regulator is made up of 100 weight part Lewatits and 100 weight part calcium lignin sulphonates; Skimmer is made up of the polyoxyethylene glycol ether.
The preparation process of low-temperature hardening scurry-proof cement slurry for well cementing is following:
Prepare each admixture in advance, preparation lightweight toughener grinds 40-100 μ m with the ultrafine high activity slag, evenly processes with the 150-200 μ m glass microballon of fine cement, fine silica flour and airtight, lightweight, inflation is mixed then.
Prepare low-temperature early strength agent in advance, sulfuric acid calcium powder, trolamine, water glass are mixed process.
Prepare anti-migration agent in advance, with 20-80 order Z 150PH, gypsum, gather sodium naphthalene sulfonate and borax and mix and process.
Prepare the rheological property regulator in advance, Lewatit and calcium lignin sulphonate are mixed process.Skimmer adopts commercially available polyoxyethylene glycol ether.
Then cement and lightweight toughener, low-temperature early strength agent, anti-migration agent and rheological property regulator are mixed, last water with the adding skimmer stirs, and processes the low-temperature high-early strength anti-migration grout.
In low-temperature hardening scurry-proof cement slurry for well cementing; The lightweight toughener is made up of glass microballon and high reactivity slag material and fine silica flour with reasonable particle size distribution, fine cement; Can not only play the effect of filling water mudstone hole; Also have stronger volcanical ash effect simultaneously, absorb the Ca (OH) that hydrated cementitious produces
2, the hydration reaction of further complete cement.High reactivity ultrafine slag and fine silica flour and fine cement are through hydrogen bond action, the gelling reaction that coagulates rigid reaction and take place with the hydrated cementitious product of self; Can compensate contraction and the fine and close cement stone uniformly of formation that cement setting causes; Reduce dehydration and free liquid content simultaneously; Prevent the contraction that grout aquation, dehydration and segregation cause, effectively stop the formation of micro-annulus.Many gelling reactions of lightweight toughener can form the spatial grid structure of even compact between subparticle simultaneously, under static state, can comparatively fast form the self-support type viscous gel, make grout have certain thixotroping ability, improve the anti-channeling ability of grout.
Low-temperature early strength agent is made up of water glass, sulfuric acid calcium powder, trolamine; Three's acting in conjunction can significantly promote the hydration reaction of cement at low temperatures; Improve the hydration activity of strongthener, the carrying out of further accelerating hydration reaction generates more gelling hydrated product; Form densification, non-infiltration, high-intensity cement stone more, demonstrate good low-temperature high-early strength ability.
Anti-migration agent by Z 150PH, gypsum, gather sodium naphthalene sulfonate and borax is formed; Through controlled crosslinked, the polyreaction of its macromolecular compound in grout, between the spatial grid structure that the cement granules aquation forms, form the macromolecule network structure, improved the viscous resistance in the grout; Can slow down because the weightlessness that the grout aquation causes; And can form dense film on pervious course surface, thus reduce the dehydration of grout and the rate of permeation of cement stone, help to prevent to miss generation with channelling.
Anti-migration agent and lightweight toughener, low-temperature early strength agent acting in conjunction; Compensated the volumetric shrinkage of system cement stone; Shorten multiviscosisty transit time and quiet gel strength transit time of grout greatly; The aquation gelling that has reduced grout is weightless, thereby has guaranteed the overall sealing performance of cement mantle and the pressure equilibrium of grout dynamic process, prevents the generation of channelling effectively.
The rheological property regulator can improve grout initial consistency and flowability, guarantees the good construction performance of grout.Skimmer can reduce the air admission amount, helps the preparation of grout.
The present invention's beneficial effect compared with prior art:
1, low-temperature hardening scurry-proof cement slurry for well cementing of the present invention is applicable to the low temperature gas-bearing formation, enlivens water layer, the well cementation on leakiness stratum.
2, low-temperature hardening scurry-proof cement slurry for well cementing, under the low temperature strength development fast, curing time is short, can effectively prevent channelling, prevent leakage, improves cementing quality.
2, simple, the reasonable price of preparation method.
Embodiment 1
Low-temperature hardening scurry-proof cement slurry for well cementing; It is characterized in that being made up of 100 weight part silicate cementing concretes, 50 weight parts waters, 10 weight part lightweight tougheners, 4 weight part low-temperature early strength agents, 3 weight part anti-migration agents, 0.2 weight part rheological property regulator, 0.2 weight part skimmer, wherein the lightweight toughener is made up of glass microballon, 50 weight part 40-100 μ m ultrafine high activity slags, 25 weight part 0.5-3 μ m fine cements and the fine silica flour of 15 weight part 0.02-0.5 μ m of 100 weight part 150-200 μ m; Low-temperature early strength agent is made up of 100 weight part sulfuric acid calcium powders, 80 weight part trolamines, 50 weight part water glass; Anti-migration agent is made up of the borax that 100 weight part 20-80 order Z 150PH, the gypsum of 200 weight parts, 200 weight parts gather sodium naphthalene sulfonate and 10 weight parts; The rheological property regulator is made up of 100 weight part Lewatits and 100 weight part calcium lignin sulphonates, and skimmer is made up of the polyoxyethylene glycol ether.
Raw materials usedly be commercially available article.
Above-mentioned raw materials is processed density 1.80g/cm
3Low-temperature hardening scurry-proof cement slurry for well cementing, the application hole condition is BS: 311mm, well depth total length: 165m; Surface string size: 244.5mm is dark under the sleeve pipe: 161.2m; Bottom-hole static temperature: 22 ℃; Formation-parting pressure: 1.80g/cm
320～30 meters exist active gas-bearing formation and water layer.Adopt this low-temperature high-early strength anti-migration grout 0～80 meter well depth section, PT is listed in table 1.
Table 1
Embodiment 2
Low-temperature hardening scurry-proof cement slurry for well cementing; It is characterized in that forming by 100 weight part silicate cementing concretes, 70 weight parts waters, 50 weight part lightweight tougheners, 4 weight part low-temperature early strength agents, 3 weight part anti-migration agents, 0.5 weight part rheological property regulator, 0.2 weight part skimmer; It is identical with embodiment 1 with the application hole condition that its each admixture is formed, and processes 1.50g/cm
3Low-temperature hardening scurry-proof cement slurry for well cementing, be used for 80-165 rice well depth section.PT is listed in table 1.
Embodiment 3
Low-temperature hardening scurry-proof cement slurry for well cementing; It is characterized in that being made up of 100 weight part silicate cementing concretes, 60 weight parts waters, 30 weight part lightweight tougheners, 4 weight part low-temperature early strength agents, 3 weight part anti-migration agents, 0.5 weight part rheological property regulator, 0.2 weight part skimmer, its each admixture is formed identical with embodiment 1.
Above-mentioned raw materials is processed density 1.60g/cm
3Low-temperature hardening scurry-proof cement slurry for well cementing, the application hole condition is BS: 215.9mm, well depth total length: 500m; Sand string size: 177.8mm is dark under the sleeve pipe: 497.53m; Choking ring position: 472.92m; Bottom-hole static temperature: 33 ℃; Formation-parting pressure: 1.62g/cm
3PT is listed in table 1.
Test-results shows that the well cementing operation quality is good.Simultaneous test shows, uses each admixture all not reach this admixture effect of Combination separately.
Claims (4)
1. low-temperature hardening scurry-proof cement slurry for well cementing; It is characterized in that being made up of 100 weight part silicate cementing concretes, 50-95 weight parts water, 10-100 weight part lightweight toughener, 3-8 weight part low-temperature early strength agent, 3-8 weight part anti-migration agent, 0.2-1 weight part rheological property regulator, 0.1-0.3 weight part skimmer, wherein the lightweight toughener is made up of glass microballon, 40-60 weight part 40-100 μ m ultrafine high activity slag, 20-30 weight part 0.5-3 μ m fine cement and the fine silica flour of 10-20 weight part 0.02-0.5 μ m of 100 weight part 150-200 μ m; Low-temperature early strength agent is made up of 100 weight part sulfuric acid calcium powders, 80-100 weight part trolamine, 40-60 weight part water glass; Anti-migration agent is made up of the borax that 100 weight part 20-80 order Z 150PH, the gypsum of 150-300 weight part, 200-300 weight part gather sodium naphthalene sulfonate and 5-10 weight part; The rheological property regulator is made up of 100 weight part Lewatits and 80-100 weight part calcium lignin sulphonate; Skimmer is made up of the polyoxyethylene glycol ether.
2. low-temperature hardening scurry-proof cement slurry for well cementing according to claim 1; It is characterized in that being made up of 100 weight part silicate cementing concretes, 50 weight parts waters, 10 weight part lightweight tougheners, 4 weight part low-temperature early strength agents, 3 weight part anti-migration agents, 0.2 weight part rheological property regulator, 0.2 weight part skimmer, wherein the lightweight toughener is made up of glass microballon, 50 weight part 40-100 μ m ultrafine high activity slags, 25 weight part 0.5-3 μ m fine cements and the fine silica flour of 15 weight part 0.02-0.5 μ m of 100 weight part 150-200 μ m; Low-temperature early strength agent is made up of 100 weight part sulfuric acid calcium powders, 80 weight part trolamines, 50 weight part water glass; Anti-migration agent is made up of the borax that 100 weight part 20-80 order Z 150PH, the gypsum of 200 weight parts, 200 weight parts gather sodium naphthalene sulfonate and 10 weight parts; The rheological property regulator is made up of 100 weight part Lewatits and 100 weight part calcium lignin sulphonates; Skimmer is made up of the polyoxyethylene glycol ether.
3. low-temperature hardening scurry-proof cement slurry for well cementing according to claim 1; It is characterized in that being made up of 100 weight part silicate cementing concretes, 70 weight parts waters, 50 weight part lightweight tougheners, 4 weight part low-temperature early strength agents, 3 weight part anti-migration agents, 0.5 weight part rheological property regulator, 0.2 weight part skimmer, wherein the lightweight toughener is made up of glass microballon, 50 weight part 40-100 μ m ultrafine high activity slags, 25 weight part 0.5-3 μ m fine cements and the fine silica flour of 15 weight part 0.02-0.5 μ m of 100 weight part 150-200 μ m; Low-temperature early strength agent is made up of 100 weight part sulfuric acid calcium powders, 80 weight part trolamines, 50 weight part water glass; Anti-migration agent is made up of the borax that 100 weight part 20-80 order Z 150PH, the gypsum of 200 weight parts, 200 weight parts gather sodium naphthalene sulfonate and 10 weight parts; The rheological property regulator is made up of 100 weight part Lewatits and 100 weight part calcium lignin sulphonates; Skimmer is made up of the polyoxyethylene glycol ether.
4. low-temperature hardening scurry-proof cement slurry for well cementing according to claim 1; It is characterized in that being made up of 100 weight part silicate cementing concretes, 60 weight parts waters, 30 weight part lightweight tougheners, 4 weight part low-temperature early strength agents, 3 weight part anti-migration agents, 0.5 weight part rheological property regulator, 0.2 weight part skimmer, wherein the lightweight toughener is made up of glass microballon, 50 weight part 40-100 μ m ultrafine high activity slags, 25 weight part 0.5-3 μ m fine cements and the fine silica flour of 15 weight part 0.02-0.5 μ m of 100 weight part 150-200 μ m; Low-temperature early strength agent is made up of 100 weight part sulfuric acid calcium powders, 80 weight part trolamines, 50 weight part water glass; Anti-migration agent is made up of the borax that 100 weight part 20-80 order Z 150PH, the gypsum of 200 weight parts, 200 weight parts gather sodium naphthalene sulfonate and 10 weight parts; The rheological property regulator is made up of 100 weight part Lewatits and 100 weight part calcium lignin sulphonates; Skimmer is made up of the polyoxyethylene glycol ether.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610089274 CN101126018B (en) | 2006-08-15 | 2006-08-15 | Low-temperature hardening scurry-proof cement slurry for well cementing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610089274 CN101126018B (en) | 2006-08-15 | 2006-08-15 | Low-temperature hardening scurry-proof cement slurry for well cementing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101126018A CN101126018A (en) | 2008-02-20 |
| CN101126018B true CN101126018B (en) | 2012-07-18 |
Family
ID=39094157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610089274 Active CN101126018B (en) | 2006-08-15 | 2006-08-15 | Low-temperature hardening scurry-proof cement slurry for well cementing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101126018B (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101628800B (en) * | 2009-08-25 | 2011-12-07 | 北京中煤矿山工程有限公司 | Early strength cement grout with low dehydration ratio for grouting |
| CN101633836B (en) * | 2009-08-26 | 2012-10-31 | 北京中煤矿山工程有限公司 | Quick-setting early strength cement slurry for ground pregrouting reinforcement |
| CN101747880B (en) * | 2009-12-29 | 2013-12-04 | 中国石油天然气集团公司 | Deep-water low-temperature low-density early-strength cementing slurry for well cementation |
| CN102030508B (en) * | 2010-11-24 | 2013-02-13 | 潘林有 | Muddy soil cement grout applied to vertical shaft part of pedestrian underpass in saturated soft clay region |
| CN102352226B (en) * | 2011-08-02 | 2013-08-14 | 东北石油大学 | Low-temperature early-strength oil well cement paste |
| CN102504775B (en) * | 2011-10-12 | 2013-03-13 | 西南石油大学 | Large temperature difference cement slurry for cementing of deep well long isolation section and preparation method thereof |
| CN102703044B (en) * | 2012-05-23 | 2014-09-10 | 成都欧美克石油科技有限公司 | Novel cement slurry plugging fluid |
| CN103865501A (en) * | 2014-02-28 | 2014-06-18 | 中国石油集团渤海钻探工程有限公司 | Low-density cement paste for salt-cavern gas storage well cementation |
| CN104774600A (en) * | 2015-03-13 | 2015-07-15 | 中国石油集团渤海钻探工程有限公司 | Oil well cement low-temperature composite early-strong coagulation accelerator |
| CN104893694B (en) * | 2015-06-02 | 2018-05-29 | 中科华星新材料有限公司 | A kind of high intensity low density cement mortar |
| CN106746847A (en) * | 2016-09-27 | 2017-05-31 | 中国石油集团川庆钻探工程有限公司长庆固井公司 | A kind of compound micro- silicon light weight cement early strength agent and preparation method and application |
| CN106542757A (en) * | 2016-10-25 | 2017-03-29 | 中国石油集团川庆钻探工程有限公司长庆固井公司 | A kind of alcamines reinforcing agent and preparation method and applications |
| CN109438082A (en) * | 2018-12-26 | 2019-03-08 | 蓝星（成都）新材料有限公司 | The preparation method of calcium sulphate dihydrate suitable for soil |
| CN109942252B (en) * | 2019-03-28 | 2021-10-22 | 长江大学 | Cement gel material and preparation method and application thereof |
| CN115305070A (en) * | 2022-08-09 | 2022-11-08 | 中海油田服务股份有限公司 | Microgel channeling-preventing fluid loss agent and preparation method and application thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1803968A (en) * | 2005-01-12 | 2006-07-19 | 新疆石油管理局钻井工艺研究院 | MTC well cementing liquid system |
-
2006
- 2006-08-15 CN CN 200610089274 patent/CN101126018B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1803968A (en) * | 2005-01-12 | 2006-07-19 | 新疆石油管理局钻井工艺研究院 | MTC well cementing liquid system |
Non-Patent Citations (3)
| Title |
|---|
| 姚晓.油井水泥外加剂质量的快速检测方法.《钻井液与完井液》.1997,第14卷(第3期),30-35. * |
| 缪明富等.油井水泥外加剂现状与发展.《钻采工艺》.1999,第22卷(第3期),66-72. * |
| 黄柏宗等.国内外油井水泥和外加剂现状及发展趋势.《钻井液与完井液》.1995,第12卷(第6期),53-72. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101126018A (en) | 2008-02-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101126018B (en) | Low-temperature hardening scurry-proof cement slurry for well cementing | |
| CN105906262B (en) | It is a kind of to continue fine expansion control concrete filled steel tube | |
| CN107619236A (en) | It is a kind of to be used for microfissure and the high-performance superfine cement based grouting material of powder fine sand soil grouting treatment and its application | |
| CN105481324A (en) | Inorganic grouting blocking material | |
| CN109626906A (en) | A kind of water-tight concrete and its preparation process | |
| CN105255465A (en) | Floating-bead-free low-density oil well cement paste | |
| CN112592143B (en) | Clay-slag-based harbor seismic strengthening mineral grouting material and preparation method thereof | |
| CN108484058A (en) | A kind of anti-dispersion plugging material of dynamic water and preparation method thereof | |
| CN103755275A (en) | Early-strength erosion-resistant clay cement paste | |
| CN106630901B (en) | Green high performance concrete | |
| CN105565745A (en) | Quick-setting early-strength grouting material | |
| CN110668774A (en) | Sprayable waterproof anticorrosion erosion-resistant high-strength mortar and use method thereof | |
| CN111170758A (en) | Foam concrete, preparation method and application thereof | |
| CN108191321A (en) | A kind of preparation method of novel water permeable concrete | |
| CN103265255B (en) | Quick-setting and rapid-hardening inorganic leak and water stopping material, and preparation method and use method thereof | |
| CN114538843A (en) | Low-energy-consumption ecological type ultrahigh-performance concrete and preparation method thereof | |
| CN112028594A (en) | Cement-water glass double-liquid grouting material with stable product for shield synchronous grouting | |
| CN111606614A (en) | Filling material containing lithium mica slag and preparation method and application thereof | |
| He et al. | Using the negative hydration of inorganic salt ions to improve the properties of Alkali-activated slag cement in plastic stage | |
| CN107640941B (en) | Acrylic emulsion toughened plastic concrete with good deformation adaptability and preparation method thereof | |
| CN109704684B (en) | Retarding type water-dispersion-resistant grouting material for implanted rock-socketed single pile | |
| CN113087470B (en) | Machine-made sand high-performance concrete | |
| CN101974319A (en) | Double-fluid rapid hardening slurry for roadway grouting and mollisol compaction grouting | |
| CN109867486A (en) | A kind of dedicated water conservation additive of high temperature resistant concrete and its preparation process, application | |
| CN115432979A (en) | Large-section tunnel secondary lining self-compacting concrete used in water-rich environment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |