Fly ash has been used as a lightweight backfill behind a 25 foot high wall and as an additive to highly plastic clay.
Light backfill material for retaining wall.
A mechanically stabilized earth mse retaining wall is a composite structure consisting of alternating layers of compacted backfill and soil reinforcement elements fixed to a wall facing.
This paper presents the investigations on the use of recycled tire chips mixed with sand as light weight backfill material for retaining wall applications through a series of laboratory model tests.
Often retaining walls are used to terrace yards that originally had a steep slope additionally retaining walls can help create usable outdoor space as well as control erosion see landscaping a split level home low retaining walls are frequently used as planting beds and can add interest to an.
Strength at 1 strain the material remains in the elastic range and will not be susceptible to creep or experience plastic yield.
When comparing the overall cost for the retaining wall using shredded tires with the retaining wall using sand a substantial cost saving was realised by the use of shredded tires.
However this requires additional cost and time to implement.
Retaining and buried wall backfill.
The literature indicates that most of the studies considered only pure tire derived materials or pure sand for retaining wall backfill applications.
Retaining wall fill photo gallery construction of bridge abutment fills over compressible soils can result in substantial settlements as a result of the grade increase.
A retaining wall is intended to hold back soil when there is a drastic change in elevation.
Preparing a troublesome site one that includes clay soil or a natural spring for example can raise costs substantially.
While retaining walls are made out of many types of building materials a landscape retaining wall utilizing a retaining wall block system is a popular choice due to the easy installation features.
The stability of the wall system is derived from the interaction between the backfill and soil reinforcements involving friction and tension.
Light weight fill.
Preloading and or surcharging the soil is commonly used to alleviate this concern.
The use of commercial by products such as furnace slag or fly ash as backfill material may be advantageous where such products are locally available and where suitable natural materials cannot be found.