IMPROVED ASPHALT FOR HEAT CONSTRUCTION METHOD CAPABLE OF BEING USED AT LOW TEMPERATURE

Title:

IMPROVED ASPHALT FOR HEAT CONSTRUCTION METHOD CAPABLE OF BEING USED AT LOW TEMPERATURE

Document Type and Number:

Japanese Patent JP2007238956

Kind Code:

A

Abstract:

To provide a straight asphalt which can prevent smoke or odor from occurring during construction work such as waterproofing work, is improved in the creep property associated with the displacement or sagging thereof and exhibits good form retention capability in a practical temperature range.

An improved asphalt being usable at a low temperature is provided by adding wax having a high softening point to straight asphalt, and by melting the asphalt in the temperature range less than 200°C, which is the temperature range in which heated asphalt hardly causes smoke or odor. The improved asphalt has a softening point of 70°C or higher and a sagging length in accordance with JIS2207 standards of less than 8 mm.

Inventors:

TAJIMA TSUNEO
IMAI TAKAYOSHI
KOJIMA TORU
ITO TAKASHI
MACHIDA SHIGERU
USUI KENICHI

Application Number:

JP2007137369A

Publication Date:

September 20, 2007

Filing Date:

May 24, 2007

Export Citation:

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Assignee:

TAJIMA ROOFING CO

International Classes:

C08L95/00; E01C7/22

Domestic Patent References:

JPH10287812A	1998-10-27
JP2004238498A	2004-08-26
JP2005155316A	2005-06-16
JP2004315826A	2004-11-11

Attorney, Agent or Firm:

Koichi Ouchi

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