Collapse of Lotus Riverside Block 7 Large quantities of earth were removed and dumped in a landfill next to a nearby creek; the weight of the earth caused the river bank to collapse, which, in turn, allowed water to seep into the ground, creating a muddy foundation for the building that toppled." Collapse of Lotus Riverside Block 7 The collapse of Block 7 at Lotus Riverside (a 13-story apartment building) in 2009 is an accident that killed one person. Lotus Riverside () is a residential apartment complex located in Minhang District, Shanghai, China. On June 27, 2009 at 5:30 Am UTC+8, Block 7, one of the
Void (composites) void content of approximately 1% is appropriate for performance while other grades of composites can have between 3%-5% void content. A small change in the percentage of void content may not seem like a large problem however for a loaded carbon fiber laminate composite, a 1%-3% increase in void content can reduce the mechanical properties of the composite by up to 20% Void content in composites is represented as a ratio, also called void ratio, where the volume of voids, solid material, and bulk volume are taken into account. Void ratio can be calculated by the formula below where e