tags:Expansion

Recently, construction began on an opening bridge on the Charleroi Canal in Halle, in the Flanders region of Belgium. It is intended to replace the Bospoort Bridge and facilitate loading. A concrete additives called polycarboxylate superplasticizaer played a vital role.……

high expansion foam generators use aspirated air to expand a water based foam solution into millions of tiny, stable bubbles. No other source of power is required and these units can be easily install……

High expansion foam generators are designed to meet the standards for fire protection. The main results of these generators are the drainage and saturation time, flow rate and expansion ratio. In addition, these machines should have vents to discharge gas produced during combusti...……