A theoretical model is provide which is needed for modቤተ መጻሕፍቲ ባይዱling its mechanical behavior or for permitting its use in various structural applications.
-
Thank You !
The chart shows the comparison between the predictions and the test data of UHTCC
The predicted curves are obtained by using the experimental strain value at peak stress instead of the fixed value of 0.002.
UHTCC
Prism
40×40×160
Matrix
Prism
40×40×160
Specimen
number 9a 9a
Suffix representation
p40u p40m
-
Results
Comparison of compressive strength
Fig. 1. Comparison of prism compressive strength between UHTCC and matrix
-
Results
Comparison of strain at peak stress
Fig. 3. Comparison of strain at peak stress between UHTCC and matrix
-
Theoretical model
Ascending branch:c1c2
-
-
Comparison of compressive strength
-
Conclusions
The prism compressive strength decreases because of the fiber addition.
The strain at peak stress is larger than that of matrix because of the fiber addition
➢ Comparison of compressive strength between UHTCC and matrix
➢ Comparison of strain at peak stress between UHTCC and matrix
A theoretical stress-strain curve model Conclusions
structural applications are limited
-
Experimental Program
Experimental Program
Table 1. Specimen Information of Each Group
Test series Specimen shape
Specimen size/mm
-
Background
Numbers of studies carried out
➢ permeability and carbonation properties ➢ tensile and bending properties ➢ freeze-thaw properties
no uniform test available for the compressive properties
Experimental Study on Compressive Properties of Ultrahigh Toughness Cementitious Composites
-
Layout
Background Experimental Program Experimental Results
c3cc2(c30.2c20.8)
Strain hardening branch: c1 c2 c
Horizontal branch: c3 c c3cc2(c30.2c20.8)
Descending branch: c3 c 0.2c
-
Comparison of stress-strain curves