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RES 201 BUILDING TECHNOLOGYSTUDIOIR DR ZAID BIN YUSOF
SURFACE HARDNESS
COMPRESSIVE STRENGTH OF CONCRETE
MUHD ZARIF ZUFAYRI BIN JUSOH (119270)
AMIRFARKHAN BIN RADZALI (11917)
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SURFACE HARDNESS
T!" #"$# %$ &$%' "*+&',!-.."/$!.%,# !-.."
I$ - '+',"$#%3" %'$#&."'#4
!"-54 "-$6 #+ +5"-#"
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O*"#%3"
T+ +*#-%' #!" "8-$#%%#6 ,-.5%' 5+5"#%"$+: #!" $&:-" 8-6" +:
+'"#"
T+ +*#-%' #!" $#"'#! +: +'"#" $&:-"
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M"#!+,
R"8"-$" #!" 58&'" :+. %#$ 8+; H+8, #!" 58&'" #+ "
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8/10/2019 Surface Hardness and Compressive Strength of
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P+",&"
P"5-" '&.*" +: &*"$ +3"%' #!" $#"'#! #+
*""'+&'#"",
C&*"$ $!-88 *" -$# &", -$ 8-%, ,+=' %' IS>
?1@>19?9
C&*"$ *" ".+3", :+. ="# $#+-" -*+ 2!+&$*":+" #"$#%'
C8"-' #!" :-" +: &*"$ #"$# %# =%#! "*+&',!-.."
T-;" "-,%' -:#" *""' #"$#
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8/10/2019 Surface Hardness and Compressive Strength of
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F+.&8-
Rebound Number Index>
!"' 1 %',%-#" #!" 5-#! ,%3"' -',3"8+%#6 "-! *6 !-.." -:#"
%.5-#!"' 0 %',%-#" #!" 5-#! ,%3"' -',3"8+%#6 "-! *6 !-.." *":+"
%.5-#
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Average of rebound numbers and standard deviations
werecalculated using Equations 1 and 2 respectively as:
!"" :- %$ #!" -3"-" +: "*+&', '&.*"$4 %$ #!" "*+&',
'&.*"4 ' %$#!" #+#-8 %.5-# '&.*" -', S %$ #!" $#-',-,
,"3%-#%+'
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8/10/2019 Surface Hardness and Compressive Strength of
Concrete
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C+.5"$$%3" T"$# +:C+'"#"
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8/10/2019 Surface Hardness and Compressive Strength of
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O*"#%3"$
To determine the compressive strength of
concrete.
To identify the test methods that will be
applied to each concrete in the projects.To identify factors
that affected the
compressive strength of steel
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A55--#&$ -', M-#"%-8$
1 T"$# $5"%."' (68%',%-8 +'"#"&*"$)
2 C&%' #-';
C+.5"$$%+' T"$#%' M-!%'"
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8/10/2019 Surface Hardness and Compressive Strength of
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8/10/2019 Surface Hardness and Compressive Strength of
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C-8&8-#%+'
C+.5"$$%3" $#"'#! %$ -8&8-#"&$%' #!" :+88+=%'
:+.&8-
Compressive strength
(N/mm2) = Wf / Ap
!""
: M-
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8/10/2019 Surface Hardness and Compressive Strength of
Concrete
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R"$&8#$
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8/10/2019 Surface Hardness and Compressive Strength of
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T!" ""# +: &%' #+ #!"+.5"$$%3" $#"'#! +:
+'"#"
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8/10/2019 Surface Hardness and Compressive Strength of
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G-," +: #!" +'"#" *-$", +' #!" .%'%.&.+.5"$$%3" $#"'#! -# 7
,-6$ -', 2 ,-6$
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8/10/2019 Surface Hardness and Compressive Strength of
Concrete
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C+'8&$%+'
T!" !%!" #!" -," +: -+'"#"4 #!" !%!" %#$+.5"$$%3" $#"'#! -# 7
,-6$
-', 2 ,-6$C&%' -"# #!" +.5"$$%3"
$#"'#! +: +'"#"
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8/10/2019 Surface Hardness and Compressive Strength of
Concrete
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T!-'; 6+& :+ 8%$#"'%' #+ +&5"$"'#-#%+'
!"" 5+#-#+"$ -$ - 5"$"'#
