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The white cloud is water vapor that is created by injecting liquid nitrogen into the concrete trucks. It rapidly dissipates within a localized footprint.
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A concrete batch plant is best defined as a central mix/wet concrete batch plant that combines stone, sand, cement, supplementary cementitious materials, and water to produce concrete for the project’s roadway, bridge, drainage, and pedestrian facilities. Put simply, it is an automated big mixing drum. Rock and sand are fed into the drum on conveyor; cement is gravity-fed into the drum; and water is piped into the drum. On occasion, additional liquid admixtures are added to assist with set time and/or environmental conditions. Similar to making a cake, all of the ingredients are mixed, and then poured into either a mixer truck or a dump truck. In addition, the concrete batch plant will have its own built-in dust filtration system to capture dust particles as concrete is mixed to prevent leaving the plant site.
Batch Plant Video
Air Quality Monitoring Information
In August 2020, parts of the batch plant will be delivered to the site. After its assembly, PLC will begin producing trial concrete batches for about a month. PLC plans to have the batch plant fully operational and producing concrete around September 2020.
For more information about the concrete batch plant, its components, and the final product produced for the 635 LBJ East Project, please see the following document:
Concrete Batch Plant Fact Sheet (pdf)
To contact the 635 LBJ East Project’s public information team, please use the project hotline or the general project email address.