• Skip to main content
  • Skip to primary sidebar
  • Home
  • Construction Engineering
    • Civil Engineering Construction
    • Plain & Reinforced Concrete-II
    • Civil Engineering Estimation
    • Engineering Materials
    • Structural Engineering
  • Mechanics
    • Mechanics of Solids 1
    • Mechanics of Solids 2
    • Soil Mechanics 1
    • Soil Mechanics 2
  • Survey
    • Surveying and Levelling
    • Surveying and Levelling 2
  • Environmental Engineering
    • Environmental Engineering
    • Environmental psychology
    • Environment planning
    • Environmental Design
  • Water Engineering
    • Fluid Mechanics 1
    • Fluid Mechanics 2
    • Hydraulic Engineering
    • Irrigation Engineering
    • Engineering Hydrology
  • Misc.
    • Pavement and Foundation
    • Engineering Geology
    • Theory of structures
    • Design of Structures
    • Steel Structures
    • Research methodology
    • Transportation Engineering
    • Contact Us

Civil Engineering Terms

Easy and Understandable Terms Related to Civil Engineering

You are here: Home / Soil Mechanics 1 / Static cone penetration test, CPT, (ASTM D3441)

Static cone penetration test, CPT, (ASTM D3441)

October 9, 2011 by admin Leave a Comment

Static cone penetration test, CPT, (ASTM D3441):

This is also known as Dutch cone test the reason behind that is, the mechanical CPT was originally developed in Netherland, but with the passage of time their was a evolution and the many new cones were invented, now a days electric cone and piezo cone are world widely used.

In the simplest form of this test a cone of base area 10 cm2 with base dia. 3.57 cm and apex angle 60 degrees is pushed into the ground at a rate of 10 mm per sec. to 20 mm per sec (ASTM D3441). Just above the cone a friction sleeve of area 150 cm2 is located. Data is collected which includes the cone resistance Qc and the sleeve resistance Qf. These two factors are very important they are used in design. Cone resistance and sleeve resistance are used in computing friction ratio.

Correlations:

Like SPT correlations have also been developed for the CPT. These correlations are between the bearing capacity, strength and sensitivity of clay, relative density of sand and over consolidation with SPT values and the pile design parameters. These correlations help u a lot in understanding the cone penetration tests.

Conventional borings can partially be replaced and instead of them we can use CPTs. The operation is quite speedy and therefore considerably large amount of data is obtained in a very short time. It is a very simple test and is very suitable for soft clays and normally suitable to the medium coarse sands. One of the major draw back of this method is that there is no recoverability of the sample once operated so it cannot be further identified and classified, which results in the difficulty and problem in advancing the cone to denser or to harder deposits.

Filed Under: Soil Mechanics 1

Reader Interactions

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Primary Sidebar

Sponsors

Recent Posts

  • Brick calculator | Brickwork calculation and brick estimation
  • Los Angeles Abrasion test | Test for road aggregates
  • Shuttering removal time of different structural members
  • Weight of steel bars per meter – Weight of steel bars formula
  • How to calculate quantity of mortar and its materials
  • Specifications of First class brickwork
  • Properties of first class bricks

Pages

  • About CivilEngineeringTerms
  • Contact Us
  • Privacy Policy
  • Submit your article or Ask any query

Categories

  • Articles
  • Civil Engg Construction and Graphics
  • Civil Engg Construction and Graphics
  • Civil Engineering Construction
  • Civil Engineering Estimation
  • Civil Engineering Practice
  • Construction management
  • Design of Structures
  • Engineering Geology
  • Engineering Hydrology
  • Engineering Materials
  • Environment planning and practice
  • Environmental Engineering 1
  • Environmental psychology
  • Fluid Mechanics 1
  • Fluid Mechanics 2
  • General Terms related to Civil Engineering
  • Hydraulic Engineering
  • Introduction to Environmental Design
  • Mechanics of Solids 1
  • Mechanics of Solids 2
  • Pavement and Foundation
  • Plain & Reinforced Concrete-II
  • Research methodology
  • Soil Mechanics 1
  • Soil Mechanics 2
  • Steel Structures
  • Structural Engineering
  • Surveying and Levelling
  • Surveying and Levelling 2
  • Theory of structures 1
  • Transportation Engineering
  • Water Resources & Irrigation Engineering

Site Stats

Copyright © 2023 · Magazine Pro on Genesis Framework · WordPress · Log in