Haydite Geotechnical Fill Brochure page #1 |
| The Proven Solution |
 For almost 50 years Rotary Kiln produced Expanded Lightweight Aggregate (LWA)
has been effectively used to solve geotechnical engineering problems and to convert
unstable soil into usable land. Lightweight aggregate can reduce the weight of compacted
geotechnical fills by up to one-half. Where thermal stability is required, LWA provides
significantly greater thermal resistance when compared to soil, sand or gravel fill. It
affords permanent economical insulation around water lines, steam lines and any other
thermally sensitive vessel. This inert, durable, stable, free-draining and enviromentally
"friendly" lightweight aggregate is extremely easy to handle and provides
economical long term solutions for geotechnical challenges.
|
| Design Advantages Reduces Dead Loads, Lateral Forces and Over Turning Forces--Provides High-Friction Angle--Controlled Gradations--Free Draining--Water and Acid Insoluble--High InsulationValue--Chemically Inert--High Strength & Durability--Easy to Handle and Install--Readily Available--Environmentally "Friendly"
|
| The Material |
 Expanded shale lightweight aggregate (LWA) has a long track record of
quality and performance. Since its development in the early nineteen hundreds, LWA
produced by the rotary kiln process has been used extensively in asphalt road surfaces,
concrete bridge decks, high-rise buildings, concrete precast/prestressed elements,
concrete masonry and geotechnical applications. The quality of LWA results from a
carefully controlled manufacturing process. In a rotary kiln, selectively mined
shale is fired in excess of 2000' F. The LWA material is then processed to precise
gradations. The result is a high quality, lightweight aggregate that is inert, durable,
tough, stable, highly insulative, and free draining, ready to meet stringent structural
specifications.
|
| Physical Properties |
 For precise information on unit weight, specific
gravity, compaction density, friction angle, thermal conductivity and other information
regarding the use of Haydite (LWA) contact your Haydite representative
|
| Geotechnical
Projects & Applications
|
| Port of Albany Marine Terminal Expansion * Albany, New York |
Engineer. Childs Engineering, Inc., Medfield Mass. |
|
| Waterfront Structures |
 *Allows economical
modification to marine terminals*Allows increased dockside draft *Reduces lateral thrust/bending moments *Allows free drainage and control of in-place density
|
| Retaining Wall Backfill *Providence Rhode Island |
| Engineer.- C.E. Maguire Engineers, Mansfield, Mass |
 This project involved the construction of a
retaining wall behind the Rhode Island State House at the Providence River. The weight of
the entire project, including the wall, the backfill and a future roadway at the top of
the wall, was quite significant. With the area's soft clay strata, there were engineering
concerns that too much weight might force the existing bulkhead toward the river. The use
of approximately 3,500 cubic yards of LWA fill reduced the total project weight so
dramatically that the probability of deep seated bulkhead failure was virtually
eliminated.
|
| Bulkheads and Retaining Walls |
 * Reduces soil thrust as well as bending
moments* Reduces forces against abutment and end slope *Allows free drainage * Improves embankment stability
|
| Barney Allis Plaza * Kansas City, Missouri |
| Architect / Engineer.- Marshall & Brown Incorporated |
 6000 cubic yards of LWA (expanded shale) was used as loose granular fill on
top of an existing underground parking garage. The material provided subsurface drainage,
weight reduction and long term stability. In addition, the LWA material established the
grade and contour for a plaza area which was built on top of the parking structure. The
LWA material was graded ASTM C330 3/4" x No. 4.
|
| Landscape & Plaza Fills |
 * Minimizes dead loads* Free Draining helps minimize hydrostatic potential * More planters and levels can be added * Easy to transport and install
|
| Continue to Page #2 |
 Request Information
|
Return to Geotechnical Home Page
|
|
|
The photos and projects in this brochure are supplied by the
|
| Hydraulic Press Brick Company Brooklyn, In. Cleveland |
Modifications to the Port Albany Marine
Terminal reclaimed an area of approximately 1500'x 80' in an unstable slope area and
provided increased dockside draft to permit service by large oil tankers. LWA backfill
minimized lateral earth pressures, while also reducing overburden pressures on the
sensitive silts. Transportation, placement and compaction of the LWA soil fill was readily
accomplished in a minimum time frame and without logistic difficulties. Peak delivery
rates were 1300 tons, approximately 55 truck-loads per day.