JPS56155274A - Buried collar water-stopping oil for prevention of freezing damage - Google Patents

Buried collar water-stopping oil for prevention of freezing damage

Info

Publication number
JPS56155274A
JPS56155274A JP5713780A JP5713780A JPS56155274A JP S56155274 A JPS56155274 A JP S56155274A JP 5713780 A JP5713780 A JP 5713780A JP 5713780 A JP5713780 A JP 5713780A JP S56155274 A JPS56155274 A JP S56155274A
Authority
JP
Japan
Prior art keywords
water
repellent material
foamed
bead
stopping oil
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
JP5713780A
Other languages
Japanese (ja)
Other versions
JPH0227385B2 (en
Inventor
Keiji Shimizu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JAPANESE NATIONAL RAILWAYS<JNR>
Japan National Railways
Original Assignee
JAPANESE NATIONAL RAILWAYS<JNR>
Japan National Railways
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 JAPANESE NATIONAL RAILWAYS<JNR>, Japan National Railways filed Critical JAPANESE NATIONAL RAILWAYS<JNR>
Priority to JP5713780A priority Critical patent/JPH0227385B2/en
Publication of JPS56155274A publication Critical patent/JPS56155274A/en
Publication of JPH0227385B2 publication Critical patent/JPH0227385B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Sealing Material Composition (AREA)
  • Materials Applied To Surfaces To Minimize Adherence Of Mist Or Water (AREA)

Abstract

PURPOSE: A water-stopping oil preventing an inverse T bolt from corroding by being packed in a buried collar and preventing crack formation due to the permeation of rain water, which is prepard by compounding a water repellent material with a foamed flastic bead having adjusted specific gravity similar to the water repellent material by the application of a powder on the surface.
CONSTITUTION: A bead made of a foamed plastic, such as polystyrene, polypropylene or polyethylene, with specific gravity adjusted to be similar to that of a water repellent material such as grease or silicone oil, by applying a powder such as iron sand or silica sand to the surface thereof, is compounded with the water repellent material. If rain water permeates into and freezes in the resulting water-stopping oil, swelling force caused by freezing is moderated by the deformation of the foamed bead mixed and kneaded with the water-stopping oil. Thus when it is packed in a buried collar of a rail slab in a cold district, surrounding concrete is prevented from cracking. The foamed bead contained loweres heat conductivity, so that heat sensitivity may be improved.
COPYRIGHT: (C)1981,JPO&Japio
JP5713780A 1980-05-01 1980-05-01 TOGAIBOSHOME KOMIKARAASHISUIABURA Expired - Lifetime JPH0227385B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5713780A JPH0227385B2 (en) 1980-05-01 1980-05-01 TOGAIBOSHOME KOMIKARAASHISUIABURA

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5713780A JPH0227385B2 (en) 1980-05-01 1980-05-01 TOGAIBOSHOME KOMIKARAASHISUIABURA

Publications (2)

Publication Number Publication Date
JPS56155274A true JPS56155274A (en) 1981-12-01
JPH0227385B2 JPH0227385B2 (en) 1990-06-15

Family

ID=13047168

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5713780A Expired - Lifetime JPH0227385B2 (en) 1980-05-01 1980-05-01 TOGAIBOSHOME KOMIKARAASHISUIABURA

Country Status (1)

Country Link
JP (1) JPH0227385B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03166285A (en) * 1989-10-13 1991-07-18 Mannesmann Ag Manufacture of fine particle mixture having hydrophobic properties
JPH03290501A (en) * 1990-04-06 1991-12-20 Nippon Guriisu Kk Composite for filling embedded plug collar

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03166285A (en) * 1989-10-13 1991-07-18 Mannesmann Ag Manufacture of fine particle mixture having hydrophobic properties
JPH03290501A (en) * 1990-04-06 1991-12-20 Nippon Guriisu Kk Composite for filling embedded plug collar

Also Published As

Publication number Publication date
JPH0227385B2 (en) 1990-06-15

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