Aggregates Manager

On Our Cover: Big jobs require big crushers. Cover photo by Kerry Clines. 15 10 During an annual event called Run with the Rotary, Silvi Group serves bottled water to runners from the ice-filled bucket of a brand new wheel loader. John Deere says its new 460E articulated truck is the largest, most operator friendly truck ever built. CONTENTS OCTOBER 2012 VOLUME 17, NUMBER 10 Through a variety of community relations programs, Silvi Group strives to be an asset to the communities in which it operates. 9 Main Highlights MSHA Milestones 12Opening Its Doors FEATURE ARTICLES During our recent conversation, Joe Main touted MSHA's work with aggregate associations to bring about safety improvements. 22The Big Boys of Crushing 22 identify and fi x problems with air classifi ers. A service technician should check these 10 items to help These extra-large crushers, with production capacities of 700 tons per hour or greater, are not for the faint of heart. WEB EXCLUSIVES Visit www.aggman.com for expanded editorial coverage. Information Library Educational materials for aggregate industry professionals. OPERATIONS ILLUSTRATED 17Alternative Energy Finding alternative sources of energy makes sense from an environmental and a fi nancial viewpoint. Sources COLUMNS & DEPARTMENTS EDITORIAL 3 4 6 9 Romancing the Stone. AGGBEAT The latest information on the future of highway funding, and other industry news. STATE AND PROVINCE NEWS A roundup of the latest news in North America. SAFETY WATCH Defi ne boundaries and establish clear communication standards for miners within a work zone. 10 30 32 33 34 36 ROLLOUTS McCloskey's R230 mobile screener and other new equipment for the aggregate market. ROCK LAW Sixth Circuit overrides Secretary of Labor on temporary reinstatement of terminated miners. DATA MINING The latest fi nancial analysis of issues impacting in the industry. CLASSIFIED ADS Aggregate industry classifi eds. ADVERTISER INDEX See who's who and where to fi nd their products. CARVED IN STONE It is important to know how much aggregate will swell when it is excavated in order to determine hauling and stockpiling requirements.

• Cover Page
• Information Library - Educational materials for aggregate industry professionals
• EDITORIAL: Romancing the Stone
• AGGBEAT: The latest information on the future of highway funding, and other industry news.
• STATE AND PROVINCE NEWS: A roundup of the latest news in North America.
• SAFETY WATCH: Define boundaries and establish clear communication standards for miners within a workzone.
• FEATURE- Main Highlights MSHA Milestones: During our recent conversation, Joe Main touted MSHAs work wih aggregate associations to bring about safety improvements.
• ROLLOUTS: McCloskeys R230 mobile screener and other new equipment for the aggregate market.
• FEATURE- Opening Its Doors: Through a variety of community relations programs, Silvi Group Strives to be an asset to the communities in which it operates.
• OPERATIONS ILLUSTRATED: Alternative Energy Sources- Finding alternative sources of energy makes sense from an enviromental and a financial viewpoint.
• FEATURE- Maintenance Guide for Air Classifiers: A service technician should check these 10 items to help identify and fix problems with air classifiers.
• FEATURE- The Big Boys of Crushing: These extra-large cruushers, with production capacities of 700 tons per hour or greater, are not for the faint of heart.
• ROCK LAW: Sixth Circuit overrides Secretary of Labor on temporary reinstatement of terminated miners.
• DATA MINING: The latest financial analysis of issues impacting in the industry.
• Classified ADS: Aggregate industry classifieds.
• ADVERTISER INDEX: See whos who and where to find their products.
• CARVED IN STONE: It is important to know how much aggregate will swell when It is excavated in order to determine hauling and stockpiling requirements.