Development of Portable Sandblasting System and Test Method for Evaluating the Abrasion Resistance of Mortar by the System

KANAMORI Takuya, KAWABE Shohei, ASANO Isamu, TAKAHASHI Ryoji, MORI Mitsuhiro

doi:10.11408/jsidre.89.i_271

Bibliographic Information

Other Title

可搬式サンドブラスト装置およびそれを用いたモルタル系材料の耐摩耗性評価試験法の開発

Abstract

<p>To establish a method of testing the abrasion resistance of cementitious repair materials in situ, we developed a portable sandblasting system and performed an accelerated abrasion test for mortar using this system to examine the appropriate test conditions in terms of the injection pressure and distance from the blast gun to the specimen (hereafter referred to as pressure and distance, respectively). Silica sand, with an average particle diameter of 0.5 mm, was the abrasive. The test results indicate that ‘0.20 MPa and 50 mm’ and ‘0.15 MPa and 25 mm’ were suitable combinations of pressure and distance, respectively, for evaluating the abrasion resistance within 2 mm from the surface. In addition, the two combinations yielded acceleration ratios of 630 and 510, respectively, in the water jet with sand for 10 h. It was confirmed that a depth gauge can measure the abrasion depth with the same accuracy as that of a laser.</p>

Journal

Transactions of The Japanese Society of Irrigation, Drainage and Rural Engineering

Transactions of The Japanese Society of Irrigation, Drainage and Rural Engineering 89 (2), I_271-I_278, 2021

The Japanese Society of Irrigation, Drainage and Rural Engineering

Keywords

Details 詳細情報について

CRID: 1390851817140978816

NII Article ID: 130008069335

DOI: 10.11408/jsidre.89.i_271

ISSN: 18847242; 18822789

Text Lang: ja

Data Source

JaLC
CiNii Articles

Abstract License Flag: Disallowed

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