The old mining towns of Central City and Black Hawk, Colorado have enjoyed legalized limjted stakes gambling for the past eight years. Not coincidentally, property values are at their highest levels ever. Commercial developers wanting to get in on the action continue to search for possible sites for casinos and resorts. The high price of “traditional” real-estate has led to an unusual solution. The developers have started to cut away at the steep slopes that surround the towns and put casinos and resorts where mountains once stood. But cutting away mounÂtains leads to conditions of instability, for which corrective measures must be taken.
Bond Strength of Shotcrete Repair
A good concrete or shotcrete repair must possess three prime charÂacteristics: 1) the repair material must be durable in an aggressive environment, 2) the repair must be well bonded to the substrate and 3) the repair must be as crack free as possible to efficiently protect any embedded steel reinforcement from corroding.
Repair of Bridge Elements Using Shotcrete
This article presents the essential elements necÂessary for successful remediation of bridge elements. It should be noted that all strucÂtural elements whether f om bridges or other strucÂtures can have certain commonality. However, with bridges, there are certain environmental characterÂistics that enhance the potential for distress. Bridge elements have a certain sensitivity to damage caused
Shotcrete Reinforcement
Before the 1970s, shotcrete was reinforced either with conventional reinforcing steel welded wire mesh fabric, or in some inÂstances with chain-link mesh or even chicken mesh. In the early 1970s the con-Dr. D.R. (Rusty) cept of steel fiber reinforced shotcrete