Search results
Results from the WOW.Com Content Network
The decision whether to construct a tunnel using a TBM or using a drill and blast method includes a number of factors. Tunnel length is a key issue that needs to be addressed because large TBMs for a rock tunnel have a high capital cost, but because they are usually quicker than a drill and blast tunnel the price per metre of tunnel is lower. [2]
A Allocation of costs is the transfer of costs from one cost item to one or more other cost items. Allowance - a value in an estimate to cover the cost of known but not yet fully defined work. As-sold estimate - the estimate which matches the agreed items and price for the project scope. B Basis of estimate (BOE) - a document which describes the scope basis, pricing basis, methods ...
The partnership erected a blast furnace and casting shop against the hillside, which created a weekly output of 25 tons of pig iron per week. Called "Pen y cae" after the farming hamlet by the locals, the partners adopted the river's name to form the Ebbw Vale Furnace Company Ltd (EVC), hence naming both the works and the developing township.
Use of slags in the construction industry dates back to the 1800s, where blast furnace slags were used to build roads and railroad ballast. During this time, it was also used as an aggregate and had begun being integrated into the cement industry as a geopolymer. [10]
The concept of inventory, stock or work in process (or work in progress) has been extended from manufacturing systems to service businesses [1] [2] [3] and projects, [4] by generalizing the definition to be "all work within the process of production—all work that is or has occurred prior to the completion of production". In the context of a ...
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
The coking plant that feeds a battery of blast furnaces is just as expensive as the blast furnace and requires a specific quality of coal. [ 63 ] [ 64 ] Conversely, many direct-reduction processes are disadvantaged by the costly transformation of ore into pellets: these cost on average 70% more than raw ore. [ 65 ]
AOL Mail welcomes Verizon customers to our safe and delightful email experience!