Session Presenter - Sam Lines, Concrete Sealants, Inc.
Title 1: Microbially Induced Corrosion in Concrete Tanks
Hydrogen sulfide gas in a septic tank is a nuisance and a health hazard. Bacteria above the liquid converts the gas into acid, causing spotty corrosion of concrete. Research over the past decade has provided information that is leading to modifications that reduce the gas in tanks. After attending this presentation, you will know how to mitigate the exposure to the gas and stop the acid that damages the tank.
Title 2: Watertight Precast Concrete Tanks
From joints to walls, the need for holding water in an assembled concrete structure is an increasingly necessary task. Infiltration can overload the system, and exfiltration may cause contamination of soils. In this presentation you will learn about the differences between watertight and dampproof. Joints are often thought of as a concern for water passage; concrete is a porous material and can contribute to seepage as well.