Okay, here's a new one for me. A contractor has submitted a mix design for the proposed "concrete" on one of my projects. Their mix design consists of water, cement, and superplasticizer... No aggregates at all. This is being used to retrofit an existing railroad bridge, so they are...
In AASHTO's Guide Specification to Bridge Temporary Works, there is a requirement for the basic wind pressure to be increased by 5 psf for falsework members over or adjacent to traffic openings. (Section 2.3.5.2 in the 2nd edition if anyone is interested)
Does anyone know where this provision...
