SL 251-2015Ë®ÀûË®µç¹¤³ÌÌìÈ»½¨Öþ²ÄÁÏ¿±²ì¹æ³Ì(Ó¢ÎÄ°æ)

SL 251-2015Ë®ÀûË®µç¹¤³ÌÌìÈ»½¨Öþ²ÄÁÏ¿±²ì¹æ³Ì(Ó¢ÎÄ°æ) ±¾ÊéÌØÉ«

¡¡¡¡In accordance with the plan for formulation and revision of water technical standards and the requirements of SL 1-2014 Specification for the Drafiting o f Technical Standards of Water Resources£¬ SL 251-2000 Code for Investigation of Natural Construction Materiats for Water and Hydropower Projects has been revised and adjusted.
¡¡¡¡This code includes 8 chapters and 4 annexes with the main contents as follows£º
¡¡¡¡-Extent and basic principles for investigation of natural construction materials.
¡¡¡¡-Requirements of investigation£¬ sampling and testing£¬and quality indices for various natural construction materials£¬including sand and gravel materials£¬ soil materials£¬ rock materials£¬ usable materials from excavations£¬ land fillmaterials£¬ hydraulic fill materials and impervious rolled-mudstone materials.
¡¡¡¡-Processing£¬ analysis and reporting of investigation results of natural construction materials.¡¡¡¡In accordance with the plan for formulation and revision of water technical standards and the requirements of SL 1-2014 Specification for the Drafiting o f Technical Standards of Water Resources£¬ SL 251-2000 Code for Investigation of Natural Construction Materiats for Water and Hydropower Projects has been revised and adjusted.
¡¡¡¡This code includes 8 chapters and 4 annexes with the main contents as follows£º
¡¡¡¡-Extent and basic principles for investigation of natural construction materials.
¡¡¡¡-Requirements of investigation£¬ sampling and testing£¬and quality indices for various natural construction materials£¬including sand and gravel materials£¬ soil materials£¬ rock materials£¬ usable materials from excavations£¬ land fillmaterials£¬ hydraulic fill materials and impervious rolled-mudstone materials.
¡¡¡¡-Processing£¬ analysis and reporting of investigation results of natural construction materials.
¡¡¡¡-Identification of alkali reactivity potential of concrete aggregate£¬ particle-size classification of soils£¬ discriminating criteria of dispersive soil£¬ and common form of tables for natural construction materials investigation.