SU103876A1 - Method of leveling moisture aggregates of concrete (sand, rubble) in winter - Google Patents

Method of leveling moisture aggregates of concrete (sand, rubble) in winter

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Publication number
SU103876A1
SU103876A1 SU452903A SU452903A SU103876A1 SU 103876 A1 SU103876 A1 SU 103876A1 SU 452903 A SU452903 A SU 452903A SU 452903 A SU452903 A SU 452903A SU 103876 A1 SU103876 A1 SU 103876A1
Authority
SU
USSR - Soviet Union
Prior art keywords
sand
concrete
winter
rubble
aggregates
Prior art date
Application number
SU452903A
Other languages
Russian (ru)
Inventor
Е.И. Аксельрод
Н.С. Мызников
А.В. Телевной
Original Assignee
Е.И. Аксельрод
Н.С. Мызников
А.В. Телевной
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 Е.И. Аксельрод, Н.С. Мызников, А.В. Телевной filed Critical Е.И. Аксельрод
Priority to SU452903A priority Critical patent/SU103876A1/en
Application granted granted Critical
Publication of SU103876A1 publication Critical patent/SU103876A1/en

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Description

При приготовлении бетонной смеси в зимнее врем  наибольшие затруднени  имеют место при дозировке воды из-за переменной влажности заполнителей, в особенности песка. Переменна  влажность заполнителей может оказать вли ние на водоцементное отношение и вызвать неоднородность бетона.During the preparation of the concrete mix in winter, the greatest difficulties occur in the dosing of water due to the variable humidity of the aggregates, in particular sand. The variable humidity of the aggregates can affect the water / cement ratio and cause heterogeneity of the concrete.

Известные способы выравнивани  влажности песка дл  получени  качественного гидротехнического бетона (вакуумирование, насыш,ение песка дополнительной влагой и др.) имеют суш,ественные недостатки . Так, используемый в качестве заполнител  песок, намытый гидромеханизацией, имеет неравномерную влажность, котора  колеблетс  от 3 до 15%. В зимнее врем  на бетонные заводы песок поступает в виде мерзлых глыб. Перед вакуумированием его необходимо оттаивать, а насыш,ение влагой песка, намытого гидромеханизацией , увеличивает зависание песка в бункерах и склонность его к смерзанию.The known methods of sand moisture leveling for obtaining high-quality hydraulic concrete (vacuuming, sand growth with additional moisture, etc.) have sushi and natural disadvantages. So, the sand used as a filler, washed by hydromechanization, has an uneven humidity, which ranges from 3 to 15%. In winter time, sand goes to concrete plants in the form of frozen blocks. Before evacuating it, it must be thawed, and the wetting of the sand, washed by hydromechanization, increases the freezing of the sand in the bunkers and its tendency to freeze.

Описываемый способ выравнивани  влажности заполнителей бетона имеет преимущество перед известными и заключаетс  в том, ,чт,о штабель песка с неравномернойThe described method of leveling the moisture of the aggregates of concrete has an advantage over the known ones and consists in the fact that, on a pile of sand with uneven

влажностью продувают устойчивыми потоками гор чего воздуха, подаваемого под давлением и подогретого паровоздушными регистрами или другими устройствами. Встреча  на своем пути смерзшиес  глыбы песка, гор чий воздух превращает лед в воду. Вода, опуска сь вниз противотоком по отношению к гор чему воздушному потоку , превращаетс  в пар и вместе с воздушным потоком удал етс  из штабел . В результате уменьшаетс  влагосодержание в массиве и приводитс  в движение неравномерно распределенна  влага в песке. Вода при своем перемеп1,ении сверху вниз и, в виде паров, снизу вверх производит выравнивание влажности штабел  в целом, перераспредел   ее за счет увлажнени  менее насыщенных участков штабел  и выпаривани  сильно увлажненных участков.humidity is blown by stable streams of hot air supplied under pressure and heated by steam-air registers or other devices. Encountering frozen blocks of sand on its way, the hot air turns ice into water. The water, descending countercurrently to the hot air stream, turns into steam and, together with the air stream, is removed from the stack. As a result, the moisture content in the array is reduced and the unevenly distributed moisture in the sand is set in motion. Water during its mixing from top to bottom and, in the form of vapor, from bottom to top, equalizes the moisture content of the stack as a whole, redistributing it by moistening less saturated portions of the stack and evaporating strongly moistened portions.

Предмет изобретени  Способ выравнивани  влажности заполнителей бетона (песка, щебн ) . в зимнее врем , отличающийс  тем, что, с целью подогрева и выравнивани  влажности заполнителей , в штабеле создаютс  устойчивые потоки гор чего воздуха, подаваемого под. давлением.The subject of the invention is a method for leveling the moisture of aggregates of concrete (sand, rubble). in winter, characterized in that, for the purpose of heating and leveling the moisture of the aggregates, stable flows of hot air supplied under the stack are created in the stack. pressure.

SU452903A 1954-11-04 1954-11-04 Method of leveling moisture aggregates of concrete (sand, rubble) in winter SU103876A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU452903A SU103876A1 (en) 1954-11-04 1954-11-04 Method of leveling moisture aggregates of concrete (sand, rubble) in winter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU452903A SU103876A1 (en) 1954-11-04 1954-11-04 Method of leveling moisture aggregates of concrete (sand, rubble) in winter

Publications (1)

Publication Number Publication Date
SU103876A1 true SU103876A1 (en) 1955-11-30

Family

ID=48377443

Family Applications (1)

Application Number Title Priority Date Filing Date
SU452903A SU103876A1 (en) 1954-11-04 1954-11-04 Method of leveling moisture aggregates of concrete (sand, rubble) in winter

Country Status (1)

Country Link
SU (1) SU103876A1 (en)

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