Strength Performance of Laterized Concrete

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Strength Performance of Laterized Concrete

• By Felix F. Udoeyo, Udeme H. Iron, Obasi O.
  Odim
• Presented By Jared Weisman

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Presentation Overview

• What is Laterite?
• What was done?
• Results
• Conclusions

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What is Laterite?

• Laterite is a natural soil that can be found in
  many tropical and subtropical areas
• SG 2.51
• Composed of insoluble iron and aluminum that is
  left after the soluble elements are dissolved
• It is widely available and cheap in many areas

These are laterite blocks Photograph from
wikipedia
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What was done?

• Used Laterite, Sand, Gravel (Coarse Aggregate),
  Potable Water, OPC
• 124 CementFine Agg.Coarse Agg.
• Replaced Sand with Laterite _at_ 0 (control), 20,
  40, 60, 80, 100
• 3 specimens for each from a single batch
• Demolded after 24hr, moist cured and strength
  tested at 3, 7, 14, 21, and 28 days
• w/c constant 0.56
• Followed ASTM and BS standards for testing

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Results

• Workability
• Compressive Strength
• Tensile Strength
• Flexural Strength
• Absorption/Permeability

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Workability
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Compressive Strength
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Tensile Strength
9
Flexural Strength
10
Absorption
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Conclusions

• As amount of Laterite is increases, workability
  increases
• As Laterite content increases, water absorption
  of the concrete decreases
• As Laterite content increases, strength decreases
• With time Laterite increases in strength like
  typical concrete

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Applications/Future

• Shrinkage/Durability Testing
• Reactivity Testing of more types of Laterite
• Create Standards
• Seemingly viable

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Thank You