SU663804A1 - Method of preparing concrete mix for concrete sputtering work - Google Patents

Method of preparing concrete mix for concrete sputtering work

Info

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
Application number
SU721851774A
Other languages
Russian (ru)
Inventor
Револьт Дмитриевич Меркин
Анатолий Андреевич Сапунов
Маркс Абович Лев
Арон Ильич Шапиро
Original Assignee
Центральный научно-исследовательский и проектно-конструкторский институт проходческих машин и комплексов для угольной, горной промышленности и подземного строительства
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 Центральный научно-исследовательский и проектно-конструкторский институт проходческих машин и комплексов для угольной, горной промышленности и подземного строительства filed Critical Центральный научно-исследовательский и проектно-конструкторский институт проходческих машин и комплексов для угольной, горной промышленности и подземного строительства
Priority to SU721851774A priority Critical patent/SU663804A1/en
Application granted granted Critical
Publication of SU663804A1 publication Critical patent/SU663804A1/en

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  • 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

SU721851774A 1972-11-30 1972-11-30 Method of preparing concrete mix for concrete sputtering work SU663804A1 (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (3)

* Cited by examiner, † Cited by third party
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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