[0012] Other attempts to counter the effects of water in blast holes have involved modified stemming. Blast holes are often 'stemmed' by loading an inert material onto the explosive column to contain the energy released by detonation or minimise the loss of explosive energy out of the collar of the blast hole. Crushed rock is a commonly used stemming material, but it is often inconvenient to have to quarry, crush, transport and load the crushed rock into individual blast holes. Drill cuttings, mud or clay are often used as alternatives.

[0013] Commercial stemming alternatives include gelled solutions of nitrate salts, or a formulation that contain nitrate salts, potentially causing nitrate pollution to the muck pile and adjacent ground water systems. As an alternative, Australian patent AU-718409 (corresponding to US patent 5,585,593) teaches the use of stemming comprising additives such as neutralised acrylic acid polymer or a neutralised mixture of sodium silicate and silicon oxide containing material or a combination of the two.

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Note added at 12 mins (2016-10-13 04:24:02 GMT)
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www.infomine.com/dictionary/hardrockminers/spanish/welcome....
carbón medio en volátiles (min), medium-volatile coal .... carribo (min), stemming, material inerte como arenas utilizado para el relleno de los barrenos posteriormente al cargado del cebo ...

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Note added at 13 mins (2016-10-13 04:24:57 GMT)
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espero que te ayude

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Note added at 14 mins (2016-10-13 04:26:32 GMT)
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www.infomine.com/dictionary/hardrockminers/spanish/welcome....
carribo (min), stemming, material inerte como arenas utilizado para el relleno de los barrenos posteriormente al cargado del cebo (explosivo). carril de guía ...