Is there any generation of silica dust when drilling concrete with fly ash?
A – Dana Arnold – Nothing has been reported that would indicate that silica dust is a concern. 11:30 a.m. Construction Guidelines – Shelley Worsham (Lawrence Berkeley National Laboratory) We took 29 building specifications and revised them to include the CPG products as well as the construction and demolition guidelines for waste management. The specifications also included other environmentally preferable products. This means that they don t necessarily contain recycled content but they also could have been manufactured in a “green” process. An example of one of the modifications that we made: Concrete, specifically with fly ash: The specifications were rewritten to push the inclusion of 50% fly ash, saying that the concrete is stronger if you add 50% or more in the mixture. The specification also mentions the fact that the more fly ash that you add to the mixture the longer it will take to cure. The specifications can be obtained two ways: On disk by contacting Shelley Worsham at saw
