Abstract: A structural cellular grout, formed by combining grout and raw unprocessed road planings. The grout is formed by combining cement, pulverized fuel ash, and a liquid. The liquid comprises water and accelerating admixtures, retarding admixtures, water reducing or water proofing admixtures, and/or superplasticizers. The road planings are produced by grinding the surface of a road. A hardened mixture having a cellular structure is formed, without the use of a foaming agent, compaction, or agitation by mechanical equipment.