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Anonymous users2024-02-15Bentonite: improve the viscosity and water absorption of cement slurry, which is conducive to improving the grouting effect, but at the same time, with the increase of bentonite content, the strength of the grout will also be reduced to a certain extent, if the viscosity is too large, it is easy to make the grouting pump blocked, etc., so the influence of bentonite on the grout should be comprehensively considered when preparing the slurry, and the more bentonite dosage is selected according to the actual project, the greater the viscosity, the longer the coagulation time, the higher the stone rate, but the strength is reduced; The more dry material in the slurry, or without changing the ratio of water and dry material, increasing the amount of bentonite can improve the stability of the slurry, which can be determined by the test according to the physical and mechanical properties of rock and soil, water content and the specific requirements of engineering treatment.
Experimental method: Referring to the GB1346 viscosity test method, the flow performance of the slurry was evaluated by the length of time for a certain amount of slurry to flow out of the funnel, that is, the relative viscosity.
Expected results: 1) Bentonite has good stability, with the increase of bentonite content under the condition of a certain water-cement ratio, the viscosity of the slurry increases and the water separation rate decreases, so that the slurry has a good stability.
2) the doping of bentonite has a certain effect on the strength of cement slurry, when the dosage is within 4, the influence on the strength of the grout is allowed, and when the bentonite is greater than 4, the strength of the grout will be greatly reduced, which is not conducive to engineering construction, so the amount of bentonite should be controlled within 4.
3) The cement slurry solution containing bentonite has greatly improved its water retention and delamination, and the water content increases, so that the working performance of the cement slurry solution can be better maintained.
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Anonymous users2024-02-14Chinese foreign language.
If you really want to read a foreign language: pull down to.
table of contents
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Anonymous users2024-02-13Of course, if you really can't find it, ask it!
It's hard to find a free service on the Internet!
isi web of knowledge engineering village2
Elsevier SDOL Database: IEEE IEE(iel)EBSCOhost, RSC, Royal Society of Chemistry, ACM, American Computer Society, ASCE, American Society of Civil Engineering Key Potato Pickers, Springer Electronic Journal, WorldScinet Electronic Journal Full Text Database, Nature Weekly, NetLibrary Electronic Books.
Proquest Degree** Full-text Database.
The National Highway Foreign Language Thematic Database The CALIS Western Journal Bibliography Subdatabase recommends the use of ISI Web of Knowledge Engineering Village2
The Chinese translation has to be done by yourself, and it is really not possible to sell Google Translate by hand.
After you finish it, read it a few times by yourself and get it smooth!
The school and the teachers will not look at this thing!
Foreign language translation is not the main content of **!
So, it's easy to get by!
Good luck!
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Anonymous users2024-02-12Hello children's shoes!
It's hard to find a free service on the Internet!
isi web of knowledge engineering village2
Elsevier SDOL database IEEE IEE (IEL).
ebscohost RSC Royal Society of Chemistry.
ACM American Computer Society (ASCE) American Society of Civil Engineers.
Springer e-journal WorldScinet e-journal full-text database.
Nature Weekly NetLibrary e-book.
Proquest Degree** Full-text Database.
National Highway Foreign Language Thematic Database CALIS Western Periodicals Sub-database.
It is recommended to use ISI Web of Knowledge Engineering Village2
The Chinese translation has to be done by yourself, and it really does not make Google Translate.
After you finish it, read it a few times by yourself and get it smooth!
Schools and teachers won't look at this!
Foreign language translation is not the main content of **!
So, it's easy to get by!
Good luck!
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Anonymous users2024-02-11Some** have no restrictions, you can see a lot of related literature, or you will find some useful linksGenerally, this kind of ** needs to be found in professional-related BBS, and it is a better literature in China.
Aluminium (al) pronunciation: English lu m n m mei lu m n m <> >>>More
The True Story of Ah Q is a novella created by Lu Xun**, **Set in rural China before and after the Xinhai Revolution, it depicts the story of Ah Q, a wandering farmer in Weizhuang, who "can really do it" when he does his work, but he has nothing, and even his name and surname are forgotten. The ** criticized the social characteristics of Chinese society at that time, such as the burial of Hu Xianjian, conservative, vulgar, and corruption, and effectively revealed the life scene of the old Chinese people and their pathologies in dire straits. >>>More
1) Save the resulting catalogue.
3) Browse the saved catalogue to get a preliminary understanding of the general direction and progress of the project. >>>More
P-C6H4[Si(CH3)3]2, MF: C12H22SI2, CAS [13183-70-5], MW = , BP = 194 1950C, MP = 92 940C. >>>More
1. Those who know are not as good as those who are good, and those who are good are not as good as those who are happy. - The Analects of Yongye >>>More