総合建設業者を対象とした先送り材の使用状況に関する実態調査

宮田 敦典; 中田 善久; 大塚 秀三; 鈴木 澄江; 陣内 浩; 土屋 直子; 山﨑 順二; 古川 雄太; 神代 泰道; 一瀬 賢一

doi:10.3130/aijt.31.642

Materials and Construction

THE QUESTIONNAIRE SURVEY IN ACTUAL USE STATUS OF PRECEDING LUBRICANT FOR GENERAL CONTRACTOR

Atsunori MIYATA, Yoshihisa NAKATA, Shuzo OTSUKA, Sumie SUZUKI, Hiroshi JINNAI, Naoko TSUCHIYA, Junji YAMASAKI, Yuta FURUKAWA, Yasumichi KOSHIRO, Kenichi ICHISE

Author information

Atsunori MIYATA
Dept. of Architecture, College of Science and Technology, Nihon Univ.
Yoshihisa NAKATA
Dept. of Architecture, College of Science and Technology, Nihon Univ.
Shuzo OTSUKA
Dept. of Building Technologists, Monotsukuri Institute of Technologists
Sumie SUZUKI
Dept. of Architecture, School of Architecture, Kogakuin Univ.
Hiroshi JINNAI
Dept. of Engineering, Faculty of Engineering, Tokyo Polytechnic Univ.
Naoko TSUCHIYA
Building Dept., National Institute for Land and Management
Junji YAMASAKI
Technical Research Institute, Strategic Planning Division, Asanuma Corporation
Yuta FURUKAWA
Technical Research Institute, Tokyu Construction
Yasumichi KOSHIRO
Technology Research Institute, Obayashi Corporation
Kenichi ICHISE
Dept. of Architecture, College of Science and Technology, Nihon Univ.

Keywords: Preceding lubricant, Questionnaire survey, Pumpability, Concrete pump

JOURNAL FREE ACCESS

2025 Volume 31 Issue 78 Pages 642-646

DOI https://doi.org/10.3130/aijt.31.642

Details

Abstract

The purpose of this study is clarified to the actual use status of preceding lubricant by questionnaire survey for general contractors. The main points of the results are as follows. Only 18% of respondents answered they had used preceding lubricant, which was significantly lower than the 80% of pumping constructors who answered they had used them. Preceding lubricant have the advantages of reducing waste and costs, but many respondents answered concern about the decrease in concrete strength and blockages. Many contractors are open to using preceding lubricant going forward.

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