Title:
CONCRETE PAVEMENT AND CONCRETE PAVEMENT CONSTRUCTION METHOD
Document Type and Number:
Japanese Patent JP2019052523
Kind Code:
A
Abstract:
To provide a concrete pavement and the like having a large bending strength at a long-term material age, a small fatigue degree, and a long service life even in a region where the annual mean air temperature is high.SOLUTION: A concrete pavement of the present invention includes at least fly ash, Portland cement, a water reducing agent, a find aggregate, and a coarse aggregate which satisfy all of the following conditions (a) through (d): (a) fly ash having a Blaine specific surface area of 2,500 to 6,000 cm/g; (b) fly ash quantity reduction of 5 mass% or less following heating the fly ash at 975±25°C for 15 min; (c) fly ash having an SiOcontent of 50 mass% or more; and (d) fly ash having a mass ratio of (NaO+0.658×KO)/(MgO+SO+TiO+PO+MnO) of 0.2 to 1.0 (the unit for the previous formula is mass%).SELECTED DRAWING: Figure 1
Inventors:
HYODO HIKOTSUGU
UEDA NOBUTO
UEDA NOBUTO
Application Number:
JP2018020979A
Publication Date:
April 04, 2019
Filing Date:
February 08, 2018
Export Citation:
Assignee:
TAIHEIYO CEMENT CORP
International Classes:
C04B14/28; E01C7/14; C04B18/08; C04B28/04
Domestic Patent References:
| JP6086465B1 | 2017-03-01 | |||
| JP2015151318A | 2015-08-24 | |||
| JP2002316856A | 2002-10-31 | |||
| JP2000230214A | 2000-08-22 | |||
| JPH09118556A | 1997-05-06 |
Foreign References:
| US4210457A | 1980-07-01 |
Other References:
早期交通開放型コンクリート舗装 １ＤＡＹＰＡＶＥ 製造施工マニュアル, vol. 第１版, JPN6022054996, 31 March 2016 (2016-03-31), JP, pages 42 - 44, ISSN: 0004950803
Attorney, Agent or Firm:
Norihiko Arai
Naoyuki Koda
Naoyuki Koda