... quarries in Vietnam’’ is very urgent, satisfying practical demands in mining industry in Vietnam 2 Research purposes of dissertation Based on explosives materials made in Vietnam and theory, ... Vietnam mining science and technology association, Nha Trang – Vietnam, p 229-232 Nguyen Dinh An (2011), Methods of classification of Blastability, Mining industry journal, 6th edition Vietnam ... factor to ensure a proper fragmentation size for limestone quarries in Vietnam, which used for some limestone quarries in Vietnam to improve economic and technical standards of blasting Object and...