Construction Blasting Fundamentals Expert Commentary

When compared with newer waterbased explosives, nitroglycerin (NG) explosives are much more sensitive to detonation by impact or friction. Of the four classes of explosives, NG has the highest sensitivity, followed by high explosive watergels, ANFO, and then emulsion explosives.

Chapter 8 BLAST DESIGN National Park Service

To obtain wellfragmented rock by blasting, explosive energy must be well distributed throughout the rock. To be effective in rock blasting, this energy must be applied at the proper millisecond delay interval to allow for optimum rock movement. The type and cost of explosives will vary from one operation to another, dependent upon many conditions.

Blaster''s Training Modules Module 1 Explosives

It is worth noting that water gels, slurries, and emulsion products can be formulated to produce either (1) capsensitive HE''s—by adding sufficient amounts of HE sensitizers—or (2) BA''s—by guideline when selecting explosives for rock blasting. Fume Class Fume class is a measure of the amount of toxic gases, primarily CO and NO x

Determining minimum burdens for quarry blasting

the distribution of explosives in the rock mass that is to be blasted. The critical dimension is the burden distance which is the shortest distance to stress relieve when a shothole detonates. It is normally the Factors for use with Emulsion Explosives . Mechanism of Rock Fragmentation

BULK EMULSION EXPLOSIVE A CASE STUDY

Sweden where Bulk Emulsion Explosives have been used. A comparison is made with other types of explosives re­ garding costs for drilling and blasting. By using Bulk Emulsion Explosive it was possible to achieve a better breakage performance. In a copper mine this resulted in a decreased powder factor and thereby less cost for the explosive.

Bulk emulsions BME

Bulk emulsions. BME is the market leader in emulsions and explosives into Africa. BME was the first explosives company to introduce cold emulsions into South African opencast mines. Consequently, our INNOVEX™ brand of bulk emulsions has become synonymous with high quality and reliability.

Practical methods to control explosives losses and reduce

Practical methods to control explosives losses undetonated explosives in the rock and precompression failure in emulsion and watergel explosives. Many blasting incidents, often with severe damage to nearby structures, have been caused by propagating dynamite. In critical blasting areas, the

Practical methods to control explosives losses and reduce

Practical methods to control explosives losses undetonated explosives in the rock and precompression failure in emulsion and watergel explosives. Many blasting incidents, often with severe damage to nearby structures, have been caused by propagating dynamite. In critical blasting areas, the

Field Testing for Emulsion Explosives Rock Products

The major problems most emulsions experience is the crystallization of the ammonium nitrate (or other salts). This crystallization means that the emulsion is breaking down and the emulsion has a high probability of misfiring, producing NO x, and firing very weakly causing minimal fragmentation and increased ground vibration.This can be caused by improper chemicals, poor mixing, and aging of

FHWA Center for Local Aid Support Publiions

Type Of Explosive Dynamite Ammonium Nitrate And Fuel Oil (ANFO) Slurry (Water Gel) Emulsion Explosives Most Common Appliion(S) Most often used in smaller boreholes. Gelatin dynamites are useful for blasting extremely hard rock. Medium and large borehole blasting and cushion blasting. The most common generalpurpose explosive in use today.

Enaex Leader in explosives and blasting services

Leader in comprehensive rockfragmentation services. We are a company that produces, commercializes, distributes and manipulates explosives and blasting agents, providing logistics and technical advice in each process.

rock emulsion explosive panghatmarriagegarden

emulsion explosive, emulsion, Compound Oil Phase, (Emulsion Explosive Use)Compound Oil Phase ⅡInstruction Manual The products that composites of various paraffin wax are made from anfo explosive (rock powder), it is raw chemical material of oily dispersant and emulsifier. Contact Supplier

Blaster''s Training Modules Module 1 Explosives

It is worth noting that water gels, slurries, and emulsion products can be formulated to produce either (1) capsensitive HE''s—by adding sufficient amounts of HE sensitizers—or (2) BA''s—by guideline when selecting explosives for rock blasting. Fume Class Fume class is a measure of the amount of toxic gases, primarily CO and NO x

rock emulsion explosive polizzyimmobiliare

rock emulsion explosive. Explosives for Rock Blasting Dyno Nobel. Dyno Nobel''s bulk explosives range from simple ANFO (ammonium nitrate + fuel oil) to straight emulsions and include a wide variety of ANFO /emulsion blends.

CN103880571A Rock emulsion explosive and preparation

The invention discloses a rock emulsion explosive and a preparation method thereof. The oil phase material of the emulsion explosive is prepared by mixing polyisobutene succinic acid triethanolamine ester serving as a novel polymer emulsifier with soyabean lecithin, vacuum cut I oil, vacuum cut II oil, Vaseline, paraffin and microcrystalline wax, so that the flexibility of an emulsion matrix

Construction Planning, Equipment, CHAPTER BLASTING

CHAPTER 13. BLASTING ROCK ENCE 420 ©Assakkaf Slide No. 12 COMMERCIAL EXPLOSIVES The first three egories, dynamite, slurries, and ANFO, are the principal explosives used for borehole charges. Twocomponent or binary explosives are normally not classified as an explosive until mixed. CHAPTER 13. BLASTING ROCK ENCE 420 ©Assakkaf Slide No. 13

emulsion explosive, emulsion, Compound Oil Phase, making

(Emulsion Explosive Use) Compound Oil Phase ⅠInstruction Manual. 1. Specific Standard: Emulsion explosive wji98990. 2. Characteristic: Compound wax and emulsifier technology with applying various doping agent, which can replace the oil phase used in the manufacturing process of emulsion explosive.

Emulsion Blend Blasting Product and How it Differs from

Dec 21, 2018 · Another option we have is to use an emulsion blend blasting product. This product, commonly referred to as "emulsion", is essentially an ammonium nitrate solution mechanically mixed with other raw materials by a computer controlled system onboard a delivery vehicle that has been driven to the job site. The specially designed delivery truck has a []

Superpower 90 Solar Patlayici

SUPERPOWER 90 . SUPERPOWER 90 is a cap sensitive emulsion explosives having superior rock crushing capability designed for tunnel blasting and all kind of underground and aboveground blasting operations. SUPERPOWER 90 does not contain dangerous explosive chemicals such as TNT and nitroglycerine in its chemical composition.

Dangers of Toxic Fumes from Blasting cdc.gov

Emulsion blasting agents are water resistant and may be loaded in bulk in wet boreholes. ANFO/emulsion blends exhibit water resistance to varying degrees depending on the ratio of ANFO to emulsion. The explosive supplier can recommend a mix ratio that is appropriate for a given appliion. 2. Determine where the blasting fumes are likely to go.

rock emulsion explosive klingenthal

Rock Emulsion Explosive Gelatinous nitroglycerine . 20150423· It is the key China civil explosive equipments enterprise. It is a large scale military enterprise the subsidiary enterprise China Weapons Industry Group Company Liaoning Qingyang Special Chemical Co., Ltd.

Determining minimum burdens for quarry blasting

the distribution of explosives in the rock mass that is to be blasted. The critical dimension is the burden distance which is the shortest distance to stress relieve when a shothole detonates. It is normally the Factors for use with Emulsion Explosives . Mechanism of Rock Fragmentation

Dangers of Toxic Fumes from Blasting cdc.gov

Emulsion blasting agents are water resistant and may be loaded in bulk in wet boreholes. ANFO/emulsion blends exhibit water resistance to varying degrees depending on the ratio of ANFO to emulsion. The explosive supplier can recommend a mix ratio that is appropriate for a given appliion. 2. Determine where the blasting fumes are likely to go.

Blasting and Explosives Quick Reference Guide 2010

PF 3(kg/m) = Total explosives in the blast/volume of rock blasted (for kg/Tonne, divided by blasted tonnes T) RWS = AWS of explosive/AWS of ANFO x 100 RBS = (RWS explosive x explosive density)/ Titan 3000 and Titan 5000 emulsion blends, it may be used as a conservative guide..

rock emulsion explosive

No.2 Rock blasting emulsion explosive,No.2 Rock Blasting Colloidal Emulsion Explosive,Explosives,Products,,Main Appliions:It can be widely applied to all kinds of hard rock blasting and controlled demolition blasting without explosive atmosphere o.

emulsion explosive, emulsion, Compound Oil Phase, making

(Emulsion Explosive Use) Compound Oil Phase ⅠInstruction Manual. 1. Specific Standard: Emulsion explosive wji98990. 2. Characteristic: Compound wax and emulsifier technology with applying various doping agent, which can replace the oil phase used in the manufacturing process of emulsion explosive.

rock emulsion explosive polizzyimmobiliare

rock emulsion explosive. Explosives for Rock Blasting Dyno Nobel. Dyno Nobel''s bulk explosives range from simple ANFO (ammonium nitrate + fuel oil) to straight emulsions and include a wide variety of ANFO /emulsion blends.

Explosive Characteristics and Performance

The energy that an explosive is able to deliver to do useful work: Energy delivered to the rock mass before the gasses vent to the atmosphere (Calculated using thermodynamic codes) Effective energy is the energy transformed into useful rock fragmentation and rock displacement Actual amount of energy delivered in any blast is unknown as too

MAXAM North America

MAXAM North America, Inc., a worldwide manufacturer, distributor of commercial explosives, accessories and technical services, acclaimed for delivering product innovation and optimal blast performance for clients in the mining, quarrying and construction industries. The company was originally founded in 1979 and has gained a strong reputation for providing highly professional blast expertise

ANFO, Emulsion and Heavy ANFO blends Mining Engineer

ANFO, Emulsion and Heavy ANFO blends Useful explosive and blasting agent for modern day blasting Presentation Transcript Needed for an explosion. Ammonium Nitrate (AN) An is a weak explosive base, its explosion temperature being 1130 degree

Explosive Characteristics and Performance

The energy that an explosive is able to deliver to do useful work: Energy delivered to the rock mass before the gasses vent to the atmosphere (Calculated using thermodynamic codes) Effective energy is the energy transformed into useful rock fragmentation and rock displacement Actual amount of energy delivered in any blast is unknown as too

ANFO Wikipedia

ANFO has a moderate velocity compared to other industrial explosives, measuring 3,200 m/s in 130 mm (5 in) diameter, unconfined, at ambient temperature. ANFO is a tertiary explosive, meaning that it cannot be set off by the small quantity of

ANFO, Emulsion and Heavy ANFO blends Mining Engineer

ANFO, Emulsion and Heavy ANFO blends Useful explosive and blasting agent for modern day blasting Presentation Transcript Needed for an explosion. Ammonium Nitrate (AN) An is a weak explosive base, its explosion temperature being 1130 degree

Welcome to Keltech Energies Ltd::..

This booster explosive can be used alone or in combination with emulsion or water gel column charge explosives. It is meant to be used in soft to medium hard strata blasting along with column charges for economical blasting. This product is supplied in 83mm and above sizes.

Characteristics of explosives : Pit & Quarry

Mar 20, 2019 · The RBS of an explosive is the energy per unit volume of an explosive when it is compared to ANFO. So the RBS of ANFO is either 100 or 1.00, depending on the manufacturer. The RBS of emulsions typically ranges between 110 and 140, depending on production factors. This means on a per volume basis, emulsion is a more powerful explosive than ANFO.

rock emulsion explosive polizzyimmobiliare

rock emulsion explosive. Explosives for Rock Blasting Dyno Nobel. Dyno Nobel''s bulk explosives range from simple ANFO (ammonium nitrate + fuel oil) to straight emulsions and include a wide variety of ANFO /emulsion blends.

ANFO, Emulsion and Heavy ANFO blends Useful explosive

May 04, 2010 · Because of the intimate mixture between oxidizer and fuel, emulsion explosives have higher energy than water gel slurries or ANFO and it matches with energy level of Nitroglycerine based explosives. Since Emulsion explosives are well oxygenbalanced, generates a minimum of noxious fumes and far less smoke.

explosives – Mining and Blasting

Jun 14, 2018 · Explosives Energy Release and Rock Breakage: Mechanism of rock breakage while release of Explosives energy upon detonation and other relevant points are discussed below: When an explosive charge is detonated, chemical reaction occur which, very rapidly changes the solid or liquid explosive mass into a hot gases.

Bulk emulsions BME

Bulk emulsions. BME is the market leader in emulsions and explosives into Africa. BME was the first explosives company to introduce cold emulsions into South African opencast mines. Consequently, our INNOVEX™ brand of bulk emulsions has become synonymous with high quality and reliability.

List of Explosive Materials Vanderbilt Environmental

Explosive mixtures containing oxygen releasing inorganic salts and water insoluble fuels Explosive mixtures containing oxygen releasing inorganic salts and water soluble fuels Explosive mixtures containing sensitized nitromethane.

Emulsion Blend Blasting Product and How it Differs from

Dec 21, 2018 · Another option we have is to use an emulsion blend blasting product. This product, commonly referred to as "emulsion", is essentially an ammonium nitrate solution mechanically mixed with other raw materials by a computer controlled system onboard a delivery vehicle that has been driven to the job site. The specially designed delivery truck has a []

rock emulsion explosive ditau

Colloidal Emulsion Explosive tyhent. The explosive is in white color with a sludgelike mixture Appliion (1)Rock emulsion explosive NO2 is a water resistant packaged explosive designed for outdoor blasting and the hard rock blasting project with no gas or mineral dust inside It can be used as primer as well as high density charging

Practical methods to control explosives losses and reduce

Practical methods to control explosives losses undetonated explosives in the rock and precompression failure in emulsion and watergel explosives. Many blasting incidents, often with severe damage to nearby structures, have been caused by propagating dynamite. In critical blasting areas, the

Welcome to Keltech Energies Ltd::..

This booster explosive can be used alone or in combination with emulsion or water gel column charge explosives. It is meant to be used in soft to medium hard strata blasting along with column charges for economical blasting. This product is supplied in 83mm and above sizes.

EAGLE GOLD PROJECT emr.gov.yk.ca

include the use of explosives for rock breaking. The predominant explosive used for ore and overburden removal will be ammonium nitrate, used to manufacture Ammonium Nitrate Fuel Oil (ANFO) and emulsion explosives (water gel). The purpose of this Explosives Management Plan (ExMP) is to describe how SGV intends to integrate the safe

explosives – Mining and Blasting

Jun 14, 2018 · Explosives Energy Release and Rock Breakage: Mechanism of rock breakage while release of Explosives energy upon detonation and other relevant points are discussed below: When an explosive charge is detonated, chemical reaction occur which, very rapidly changes the solid or liquid explosive mass into a hot gases.

Explosive Characteristics and Performance

fragmentation, rock displacement, ground vibration and air overpressure. Explosive efficiency varies from 35% to 90% of maximum energy (this is the actual energy delivered in a blast is 35% to 90% of theoretical maximum) The actual amount of energy delivered from any blast hole is unknown.