SU663804A1 - Method of preparing concrete mix for concrete sputtering work - Google Patents
Method of preparing concrete mix for concrete sputtering workInfo
- Publication number
- SU663804A1 SU663804A1 SU721851774A SU1851774A SU663804A1 SU 663804 A1 SU663804 A1 SU 663804A1 SU 721851774 A SU721851774 A SU 721851774A SU 1851774 A SU1851774 A SU 1851774A SU 663804 A1 SU663804 A1 SU 663804A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- concrete
- preparing
- mix
- mixture
- sputtering work
- Prior art date
Links
Landscapes
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Description
1one
Изобретение относитс к набрыэгбетонным и подобным работам и может быть использовано на различных строительных объектах, преимущественно при бетонировании подземных сооружений ;The invention relates to the construction of concrete and similar works and can be used at various construction sites, mainly in the concreting of underground structures;
Известен способ приготовлени ,бетонной смеси, включающий подачу сыпучих компонентов смеси и транспорти-. рование их сжатым воздухом,причем подача добавок - ускорителей схватцвани цемента осуществл етс под действием собственного веса, что приводит к неравномерному распределению их в основной смеси и получению недостаточно качественной смеси цемента с заполнител ми 1.The known method of preparation is a concrete mix, which includes the supply of bulk components of the mixture and transportation. They are compressed air supply, and the supply of cement accelerator additives is carried out under the action of its own weight, which leads to an uneven distribution in the main mixture and obtaining an insufficiently high quality mixture of cement with aggregates 1.
Известен способ приготовлени бетбнной смеси при проведении набрызгбетонных работ, включающий подачу сыпучих компонентов бетонной смеси в виде заполнителей и цемента в поток воздуха, их транспортирование по трубопроводу и затворение водой 2.A known method of preparing a betbn mixture during the sprinkling of concrete works, including the supply of bulk components of the concrete mixture in the form of aggregates and cement in the air flow, their transportation by pipeline and mixing with water 2.
В известном способе сыпучие компоненты смеси .смешивают заблаговременнр в бетономаиалках, доставл ют к месту производства работ в виде готовой сухой бетонной смеси и загружают в набрызгбетонную машину.In the known method, the bulk components of the mixture are mixed in advance in concrete mixers, delivered to the work site in the form of ready-made dry concrete mix and loaded into a concrete mixing machine.
В р де случаев, пpeи vщecтвeннo при бетонировании подземных сооружений , с момента приготовлени сухой бетонной смеси.и до загрузки ее в набрызгбетрнную машину может пройти значительное врем : до 10 часов и более.In a number of cases, it has already been created when concreting underground structures, from the moment of preparing a dry concrete mix. And it can take a long time to load it into a spray machine: up to 10 hours or more.
00
За это врем , вследствие естественной влажности, цемент гидратируетс и частично тер ет свои активные свойства, что приводит к снижению прочности и, следовательно, качест5 ва получаемого бетона.During this time, due to natural moisture, the cement hydrates and partially loses its active properties, which leads to a decrease in strength and, consequently, the quality of the concrete produced.
Кроме того, приготовление сухих бетонных смесей требует сравнительно больших трудозатрат, а стоимость их равна стоимости товарного бетона, In addition, the preparation of dry concrete mixtures requires relatively large labor costs, and their cost is equal to the cost of ready-mixed concrete,
0 что значительно превышает суммарную стоимость отдельных компонентов смеси ..0 which significantly exceeds the total cost of the individual components of the mixture ..
Целью изобретени вл етс повышение качества бетона и уменьшение The aim of the invention is to improve the quality of concrete and reduce
5 трудозатрат.5 labor costs.
Это достигаетс тем, что в способе приготовлени бетонной смеси при проведении набрызгбетонных работ, включающем подачу сыпучих компонен0This is achieved by the fact that in the method of preparing a concrete mixture during the spraying of concrete work, including the supply of bulk components
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU721851774A SU663804A1 (en) | 1972-11-30 | 1972-11-30 | Method of preparing concrete mix for concrete sputtering work |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU721851774A SU663804A1 (en) | 1972-11-30 | 1972-11-30 | Method of preparing concrete mix for concrete sputtering work |
Publications (1)
Publication Number | Publication Date |
---|---|
SU663804A1 true SU663804A1 (en) | 1979-05-25 |
Family
ID=20533548
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU721851774A SU663804A1 (en) | 1972-11-30 | 1972-11-30 | Method of preparing concrete mix for concrete sputtering work |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU663804A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4844340A (en) * | 1986-07-30 | 1989-07-04 | Railway Technical Research Institute | Method and apparatus for spraying an inorganic hydraulic material composition containing reinforcing short fibers |
US5467923A (en) * | 1992-02-17 | 1995-11-21 | Burian Gesellschaft M.B.H. & Co. Kg | Method and device for the monolithic application of a thermal-insulation and/or fire-protection compound to a surface |
RU2730720C1 (en) * | 2016-12-12 | 2020-08-25 | Рефратехник Холдинг Гмбх | Mixing head for device for application of shotcrete and device for application of shotcrete, which contains such mixing nozzle, and method of application of shotcrete |
-
1972
- 1972-11-30 SU SU721851774A patent/SU663804A1/en active
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4844340A (en) * | 1986-07-30 | 1989-07-04 | Railway Technical Research Institute | Method and apparatus for spraying an inorganic hydraulic material composition containing reinforcing short fibers |
US5467923A (en) * | 1992-02-17 | 1995-11-21 | Burian Gesellschaft M.B.H. & Co. Kg | Method and device for the monolithic application of a thermal-insulation and/or fire-protection compound to a surface |
RU2730720C1 (en) * | 2016-12-12 | 2020-08-25 | Рефратехник Холдинг Гмбх | Mixing head for device for application of shotcrete and device for application of shotcrete, which contains such mixing nozzle, and method of application of shotcrete |
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