Foreword

In order to satisfy the requirements of speedy construction of concrete works in water and hydropower projects,and define the technical requirements and the technical guarantee in the aspects of the design,manufacture,type selection,inspection,transportation,etc.of concrete mixers for water and hydropower projects,this standard is formulated in accordance with the requirements of GB/T 1.1—2009 Directives for standardization—Part 1: Structure and drafting of standards.

This standard is approved by the Ministry of Water Resources of the People's Republic of China.

This standard is interpreted by Standard and Quality Control Research Institute,Ministry of Water Resources,P.R.China.

This standard is chiefly drafted by Standard and Quality Control Research Institute,Ministry of Water Resources,P.R.China and Hangzhou Jianghe Machinery and Electrical Equipment Engineering Co.,Ltd.

The chief drafters of this standard are XU Xiaoli,JIANG Chao,FANG Yong,FENG Xinhong,LU Xuefu,ZHANG Jun,HE Xinchu,FANG Yi,CAO Yufen,YU Qintai,and WANG Xinmin.

The technical responsible person of this standard review conference is LONG Huiwen.

The format examiner of this standard is WANG Yi.