Flash Fill^® is a patented, fast-setting flowable backfill material that is made from Class C fly ash and a filler, such as Class F fly ash, and a proportional blend of water. Flash Fill^® is delivered to construction or maintenance project sites by volumetric mixer trucks. Flash Fill^® is mixed on site as a very fluid material that fills all void areas that may be inaccessible to other types of backfill. Flash Fill^® is a superior alternative to compacted backfill which takes time and labor to install. Flash Fill^® requires no labor for installation and no equipment for compaction. Even with its quick setting characteristics, Flash Fill^® can easily be reexcavated later with hand tools or machinery.

• Minimizes repair time, fast installation.
• No subsidence or settlement.
• Low cost.
• Can be reexcavated with minimal effort.
• Maintenance free.
• Fills voids inaccessible to compaction equipment.
• No future maintenance or call backs.
• Flows like water.
• Achieves maximum density.
• Non-toxic

Right of way streets & sidewalks: When used as a fill material in street excavations, Flash Fill^® can be paved over with concrete or hot mix bituminous concrete, in less than four hours following Flash Fill^® placement. Temporary patches are eliminated.

Inaccessible areas: Flash Fill^® can be easily pumped into voids that are inaccessible to granular fill materials. Washouts under concrete streets or sidewalks are readily filled, eliminating costly alternatives. Abandoned fuel storage tanks are filled by gravity flow through ground level openings or by pumping through a small diameter fill pipe. Any place where high performance by the backfill material is required or where granular materials are difficult to place, Flash Fill^® will be the material of choice.

Situations that call for Flash Fill^® include:

• Street excavations, where Flash Fill^® minimizes subsidence, provides uniform pavement support and minimizes the likelihood of potholes over trench repairs.
• Bridge abutments, where Flash Fill^® permits a smooth transition from roadway to bridge deck and the familiar "thump-thump" that motorists have come to expect is prevented.
• Voids left in rubble filled basement areas during building demolition.
• Inaccessible areas resulting from soil settlement or water washout under streets, sidewalks or structures.
• Abandoned sewers, tunnels, and storage tanks.

Flash Fill^® uses specially designed volumetric delivery units for placement. There is no waste because the actual amount of material necessary is proportioned and mixed at the site; it is not necessary to agonize over "how much to order." With Flash Fill^®, the end user only pays for the quantity used in the placement.

Studies show Flash Fill^® is dramatically more cost efficient than granular fill materials, especially where labor intensive compacting methods are necessary to achieve proper consolidation.

Flash Fill^® is made from non-toxic coal fly ash and is not hazardous to the environment