RU2439014C1 - Method of preparing coarse aggregate - Google Patents
Method of preparing coarse aggregate Download PDFInfo
- Publication number
- RU2439014C1 RU2439014C1 RU2010130249/03A RU2010130249A RU2439014C1 RU 2439014 C1 RU2439014 C1 RU 2439014C1 RU 2010130249/03 A RU2010130249/03 A RU 2010130249/03A RU 2010130249 A RU2010130249 A RU 2010130249A RU 2439014 C1 RU2439014 C1 RU 2439014C1
- Authority
- RU
- Russia
- Prior art keywords
- coarse aggregate
- aggregate
- concrete
- drying
- carried out
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 7
- 238000001035 drying Methods 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000005406 washing Methods 0.000 claims abstract description 5
- 239000012047 saturated solution Substances 0.000 claims abstract description 4
- 239000012670 alkaline solution Substances 0.000 claims abstract description 3
- 239000004567 concrete Substances 0.000 abstract description 8
- 239000000203 mixture Substances 0.000 abstract description 2
- 238000002360 preparation method Methods 0.000 abstract description 2
- 239000011435 rock Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 abstract 1
- 229910000406 trisodium phosphate Inorganic materials 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 241000872931 Myoporum sandwicense Species 0.000 description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 2
- 239000000920 calcium hydroxide Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000012736 aqueous medium Substances 0.000 description 1
- 244000309464 bull Species 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
Description
Изобретение касается подготовки крупного заполнителя - щебня и гравия - для использования в составах бетонов при возведении гидротехнических сооружений (плотин, быков мостов, бассейнов, резервуаров, шлюзов, колодцев и т.д.).The invention relates to the preparation of a large aggregate - crushed stone and gravel - for use in concrete compositions in the construction of hydraulic structures (dams, bull bridges, pools, reservoirs, locks, wells, etc.).
Известен способ подготовки крупного заполнителя (щебня и гравия), предусматривающий его промывку (водой), выдержку в водном щелочном растворе с последующей сушкой [1]. Подготовленный таким способом заполнитель очищен от пылевидных, илистых и глинистых частиц. Однако приготовленный с применением такого заполнителя бетон при его эксплуатации в гидротехнических сооружениях не достаточно защищен от коррозии, вызываемой воздействием находящегося в водной среде свободного гидроксида кальция [2].A known method of preparing large aggregate (crushed stone and gravel), providing for its washing (water), exposure to an aqueous alkaline solution, followed by drying [1]. The aggregate prepared in this way is cleaned of dusty, silty and clay particles. However, concrete prepared using such aggregate during its operation in hydraulic structures is not sufficiently protected from corrosion caused by exposure to free calcium hydroxide in an aqueous medium [2].
Задачей изобретения является получение устойчивого к коррозии бетона (железобетона) гидротехнических сооружений за счет введения в его состав обработанного крупного заполнителя, повышение адгезионных свойств обработанного крупного заполнителя к бетону.The objective of the invention is to obtain corrosion-resistant concrete (reinforced concrete) hydraulic structures due to the introduction of processed coarse aggregate, increasing the adhesive properties of the processed coarse aggregate to concrete.
Технический результат достигается тем, что в способе подготовки крупного заполнителя, предусматривающем его промывку водой с последующей сушкой, после промывки водой осуществляют выдержку крупного заполнителя в течение 48-120 ч в водном насыщенном растворе Na3РO4, или Na2С2O4, или NaIO3.The technical result is achieved by the fact that in the method of preparing a coarse aggregate, which involves washing it with water and then drying, after washing with water, the coarse aggregate is aged for 48-120 hours in an aqueous saturated solution of Na 3 PO 4 , or Na 2 C 2 O 4 , or NaIO 3 .
Способ поясняется примером.The method is illustrated by an example.
Крупный заполнитель промывают водой, помещают в емкость с водным насыщенным раствором Na3РO4, или Na2С2O4, или NaIO3, где выдерживают в течение 48-120 ч. Затем заполнитель извлекают из раствора и сушат до влажности 1-7%.The coarse aggregate is washed with water, placed in a container with an aqueous saturated solution of Na 3 PO 4 , or Na 2 C 2 O 4 , or NaIO 3 , where it is kept for 48-120 hours. Then the aggregate is removed from the solution and dried to a moisture content of 1-7 %
Крупный заполнитель, подготовленный предложенным способом, способствует получению бетона гидротехнических сооружений, устойчивого к коррозии, вызываемой воздействием находящимся в водной среде свободным гидроксидом кальция, кроме того, указанный заполнитель имеет повышенные адгезионные свойства (адгезия к бетону повышается на 30%), что увеличивает срок службы указанных сооружений.A large aggregate prepared by the proposed method contributes to the production of concrete for hydraulic structures that are resistant to corrosion caused by exposure to free calcium hydroxide in the aquatic environment, in addition, this aggregate has improved adhesion properties (adhesion to concrete increases by 30%), which increases the service life specified facilities.
Источники информацииInformation sources
1. RU 2377204 C1, 27.12.2009.1. RU 2377204 C1, 12/27/2009.
2. Федосов С.В., Базанов С.М. Сульфатная коррозия бетона. - М.: Изд-во АСВ, 2003. - С. 9-15.2. Fedosov S.V., Bazanov S.M. Sulphate corrosion of concrete. - M .: DIA Publishing House, 2003 .-- S. 9-15.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2010130249/03A RU2439014C1 (en) | 2010-07-19 | 2010-07-19 | Method of preparing coarse aggregate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2010130249/03A RU2439014C1 (en) | 2010-07-19 | 2010-07-19 | Method of preparing coarse aggregate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| RU2439014C1 true RU2439014C1 (en) | 2012-01-10 |
Family
ID=45783975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RU2010130249/03A RU2439014C1 (en) | 2010-07-19 | 2010-07-19 | Method of preparing coarse aggregate |
Country Status (1)
| Country | Link |
|---|---|
| RU (1) | RU2439014C1 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1366613A1 (en) * | 1986-03-10 | 1988-01-15 | Краснодарский политехнический институт | Method of preparing reinforcements for concrete work |
| KR20020089835A (en) * | 2001-05-24 | 2002-11-30 | 인선이엔티 주식회사 | Method for Manufacturing Ascon Using Recycled Construction Waste Articles |
| RU2377204C1 (en) * | 2008-09-25 | 2009-12-27 | Юлия Алексеевна Щепочкина | Method of preparing break stone and gravel (versions) |
-
2010
- 2010-07-19 RU RU2010130249/03A patent/RU2439014C1/en active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1366613A1 (en) * | 1986-03-10 | 1988-01-15 | Краснодарский политехнический институт | Method of preparing reinforcements for concrete work |
| KR20020089835A (en) * | 2001-05-24 | 2002-11-30 | 인선이엔티 주식회사 | Method for Manufacturing Ascon Using Recycled Construction Waste Articles |
| RU2377204C1 (en) * | 2008-09-25 | 2009-12-27 | Юлия Алексеевна Щепочкина | Method of preparing break stone and gravel (versions) |
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