The advent of retarding agents make exposed aggregate a more attractive design option. In the past, exposed aggregate finishes were achieved by broadcasting stone over wet concrete and pressing it in or by removing (mechanically or with acid) the surface of cured concrete. These were labor intensive and/or yielded inconsistent results. Chemical retarders eliminated these concerns. They prevented the cement reaction at the top of the slab and making it easier to remove the paste. This process was further simplified by retarders with set depths, such as Surface Deactivator.
It may only be March but, for most of the country, unseasonable weather means Summer is practically here. For concrete finishers, that means two things. First, it’s time to start working. Second, it’s going to get hot and finishing is going to get more difficult. It’s ironic – conditions that allow you to place and finish concrete make it harder to place and finish concrete. DAY1 exists to save your tired back and ease your worries when the slab starts getting crusty.