Standard No.:	NB/T 51019-2014
English Name:	Method of compaction testing of solid backfilling materials
Chinese Name:	固体充填材料压实特性测试方法
Professional Classification:	NB    Professional Standard - Energy
Issued by:	China Energy Administration
Issued on:	2014-10-15
Implemented on:	2015-3-1
Status:	valid
Language:	English
File Format:	PDF
Word Count:	1500 words
Price(USD):	45.00
Delivery:	via email in 1 business day

1 Scope



This standard specifies the testing principle and purpose, testing equipment and instruments, specimen preparation, testing procedures, expression of results and testing report in respect of the method of compaction testing of solid backfilling materials.

This standard is applicable to the compaction testing of backfilling materials in the technology of fully-mechanized coal mining with solid backfilling.



2 Normative References



The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

GB/T 700-2006 Carbon Structural Steels



3 Test Principle and Purpose



Through the compaction test, the stress-strain relationship and the backfilling-mining mass ratio are obtained during the compaction process of the backfilling materials.

Foreword
1 Scope
2 Normative References
3 Test Principle and Purpose
4 Testing Equipment and Instruments
5 Specimen Preparation
6 Testing Procedures
7 Expression of Results
7.1 Stress-strain Relationship
7.2 Backfilling-mining Mass Ratio
8 Testing Report
Appendix A (Normative) Sample Form of the Testing Report