Expansive, non-explosive demoliton agent Dynacem was used to chemically break and remove concrete from a concrete mixer truck. High strength, crushed aggregate concrete was manufactured by a German mixing plant with 100 years experience in concrete production. The concrete had hardened a couple of months before. Hammering was burdensome, ineffective and expensive. In November a decision was made to trial Dynacem expansive mortar used for non-explosive breaking and demolition of concrete and rocks. Work pace picked up significantly. 38 mm holes were drilled. It was essential to space the holes out correctly and at an appropriate angle, as recommended by Dynacem support engineer. Expansive force of Dynacem caused the concrete to crack. Delaminated pieces of concrete could then be easily removed from the mixer truck. The entire truckload of solidified concrete was removed using Dynacem.

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