SOIL ENGINEERING NOTES – Week 14
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Three main soils for building or not building
Cohesionless – do not stick together – usually sand, but can be silts Cohesion – particles stick together and may be plastic and sticky – silts and clays Organic – fluffy and can not support weight
Three main soils for building or not building: _______ – do not stick together – usually sand, but can be silts _______ – particles stick together and may be plastic and sticky – silts and clays _______ – fluffy and can not support weight
Cohesionless Cohesion Organic
What are the three Atterburg limits?
Liquid Limit – the phase where drying soil out from solution to plastic Plasticity Limit - the phase where drying soil out from plastic to semi-solid Shrinkage Limit - the phase where drying soil out from semi-solid to solid
Atterburg limits – moisture and consistency capabilities that mark the points of solidity, semisolidity, plasticity and solution – these determine the soil ability to support weight _______ Limit – the phase where drying soil out from solution to plastic _______ Limit - the phase where drying soil out from plastic to semi-solid _______ Limit - the phase where drying soil out from semi-solid to solid
Liquid Limit Plasticity Limit Shrinkage Limit
What is a penetrometer used for?
It is pressed into the soil to get a idea of the soils compressibility.
—–Pond Construction—– Four reasons for constructing ponds
Livestock Watering Irrigation Fire Emergency (Dry Hydrants) Fish & Wildlife Production