If you can't read please download the document
Upload
keisha
View
95
Download
10
Embed Size (px)
DESCRIPTION
建筑材料 期末复习题集. 2 建筑材料的基本性质 例 2-1 某工地所用卵石材料的密度为 2.65g/cm 3 、表观密度为 2.61g/cm 3 、堆积密度为 1680 kg/m 3 , 计算此石子的孔隙率与空隙率? 解 石子的孔隙率 P 为: 石子的空隙率 P , 为: [ 评注 ] 材料的孔隙率是指材料内部孔隙的体积占材料总体积的百分率。空隙率是指散粒材料在其堆集体积中 , 颗粒之间的空隙体积所占的比例。计算式中 ρ— 密度; ρ 0 — 材料的表观密度; ρ , — 材料的堆积密度。. - PowerPoint PPT Presentation
Citation preview
2 2-1 2.65g/cm32.61g/cm31680 kg/m3 P P [] , 0
2-2 2900g2550g24011553mm50g18.62 cm3
[]
2-3 174178165MPa
0.930.85[]
2-4 :
2-5 a. >90 b. .90c.0: b:>90[] 90>90
4 4-1
12 34[] Ca(OH)2Ca(OH)2
4-2:
[]
4-3
[] CaOH2
4-4. aSO4H2O
, , , , []
4-5 1 2
3 21%4 , .[].
4-6 MgCO3
MgO3.2800900kg/m375mm15mm [] MgO4060Pa
4-7
CO2
Na2SiF6
SiO2[]
4-8 Na2OnSiO2 nSiO2mH2O Na2OnSiO2
5 5-1
d
%
3S
C2S
C3
4AF
56
17
12
15
42
35
7
16
[] 3S C3 C2S
3S
C2S
C3
4AF
28d
5-2. []
5-3 28d[] GB175-19990.08 mm0.08 mm10%
5-4.1 2 CaOH2
1.5[] 5.0
5-5.~4[]
5-6.:3SC33SC3
[] C33S
5-7.:CaOH2CaOH2
[] 1CaOH2C3AH62
5-8 CaOH2C3AH6C3AS3H311.5
C3AH6C3AS3H31
[] CaOH2C3AH6C3AS3H311.5
5-9 SiO2Al2O3CaOH2CaOH2
[]
5-10 1CaOH2SiO2Al2O3
23
4CaOH2C3AH6CaOH2
[] SiO2Al2O3
5-11.
kN
kN
3d
28d
3d
28d
1.25
2.90
23
75
29
71
1.60
3.05
29
70
28
68
1.50
2.75
26
69
27
70
1
3d
(>10%)
1.25
3d
_1057418541.unknown
_1057481335.unknown
_1057481339.unknown
_1057418880.unknown
_1057418465.unknown
28d
28d
_1057479215.unknown
_1057481559.unknown
2
3d
>10%
23
3d
_1057477674.unknown
_1057477840.unknown
_1057481256.unknown
_1057477691.unknown
_1057418880.unknown
28d
28d
_1057481183.unknown
_1057481252.unknown
MPa
MPa
3d
28d
3d
28d
17.4
44.1
3.6
6.8
(GB175-1999)42.5
[] 0.1MPa30.1MPa10
6 6-1
6-2[] 95%
6-3
[]
6-4
6-5. 2030
[]
6-500g
mm
5.0
2.5
1.25
0.63
0.315
0.16
()
5
100
150
145
80
20
g
5.0
5
a1=5/500=1
A1=a1=1
2.5
100
a2=100/500=20
A2=A1+ a2=21
1.25
150
a3=150/500=30
A3=A2+ a3=51
0.63
145
a4=145/500=29
A4=A3+ a4=80
0.315
80
a5=80/500=16
A5=A4+ a5=96
0.16
20
a6=20/500=4
A6=A5+ a6=100
4-1 [] x3.73.1x3.02.3x2.21.6x1.50.7
_1059632704.unknown
_1059632741.unknown
6-7 170 kg40mm
14341250mm[]
6-8
[]
6-9
[]
6-10. 0.65
[]
6-11
[]
6-12. SO42 2400g2810C 15000gL[]
6-13
[]
6-14
[]
6-15
3
[]
6-16
[]
6-17
[]
6-181 2
345
[] WC
6-19 4
56[] 100MPaSiO2SiO2, SiO2Ca(OH)2
6-20 306 286 2703.0a100mm
[]100mm0.9595%95%t1.645
C20
_1059831621.unknown
_1059831823.unknown
_1059831341.unknown
4-2110cm10cm10cm 7d140kN135kN 140kN, 28d 7
22.4Pa
_1059845074.unknown
_1059845145.unknown
_1059845227.unknown
_1059845050.unknown
[]
fnMPa
f2828dMPa
_1059845476.unknown
6-22.
[]
6-23II
IIIIV
[]
6-242025
100175203
[]
6-25
[]
6-26
35[]
6-2712.613
[]
6-28 305MPa 42.5=3.10/cm1.08 os=2.60cm 530mm og=2.65/cm3 2 1
(1)fcu,0
fcu,0= fcu,k + 1.645= 30 + 1.6455 =38.2 MPa
(2)W/C
fce = c
fce,k = 1.08 42.5=45.9MPa
4-8, 0.650.53
_1059981935.unknown
_1059983732.unknown
3mw0
6-630,1m3185kg
(4) mc0
6-6260 mc0 3493
_1060067921.unknown
66 /3JGJ55-2000
()
()
10
20
31.5
40
16
20
31.5
40
()
10~30
190
170
160
150
200
185
175
165
30~50
200
180
170
160
210
195
185
175
50~70
210
190
180
170
220
205
195
185
70~90
215
195
185
175
230
215
205
195
68 JGJ552000
1.
0.65
0.60
200
260
300
2.
0.70
0.60
0.60
225
280
300
0.55
0.55
0.55
250
280
300
0.50
0.50
0.50
300
300
300
5s67400.5332%~37%s=
6-7 %JGJ55-2000
()
()
10
20
40
16
20
40
0.40
26~32
25~31
24~30
30~35
29~34
27~32
0.50
30~35
29~34
28~33
33~38
32~37
30~35
0.60
33~38
32~37
31~36
36~41
35~40
33~38
0.70
36~41
35~40
34~39
39~44
38~43
36~41
s0g0
mc0=349mw0=185
s0=641
g0=1192
_1060154315.unknown
_1060154720.unknown
7
m3 349 1856411192
=1.84 3.420.53
2
1
mc = mc0=349
s = s01+3%=6411+3%=660
g = g01+1%=11921+1%=1204
w= mw0s03%g01%=1856413%11921%=154
[]
6-293.151.896.24, 12.482450m3 C:S:G:W=3.15:6.24:12.48:1.89 =1:1.98:3.96:0.60
2450C+S+G+W=2450 C+1.98C+3.96C+0.60C=7.54C=2450m3 C=325 S=1.98C=644 G=3.96C=1287 kg W=0.6C=195 kg[]
6-30
[]
6-31SiO2Al2O3CaOH2
[] 28
6-32
[]
6-33
[]
6-34 108010032.5MPa1450kgm32%100mmM10=2.5 MPa5-3 fm0=f2 + 0.645=10+0.6452.5=11.6 MPa
A=3.03B=15.09
Qc = 100011.6+15.09/ 3.0332.5 = 271 kg/m3
D QA= 330
DQc = 330271 = 59 kg/m3
_1060521320.unknown
100 mm 1200.97 59 0.97 = 57 kg/m3 Qs= 10= 1450 0.02 = 1479 kg/m3 300 kg/m3 =271571479300[] = 10.215.46 300 kg/m3
6-35
[]
6-36
12.50.500.608032.5[]
6-37
[] 42.5=112151.52.0 0.0670.074 WmK=11580.0760.105 WmK
7 -1 Fe2O3Fe2O3(FeO)
[] Fe2O3(FeO)
-2.
[]510120002mm10 mm 10 mm15
-3
[]
-4 1014.221.19.522.913.318.818.218.219.819.8MPa10
S
fi
S= 4.05 MPa
=0.230.21
fmin=9.57.5
63 MU10
_1060699187.unknown
_1060853152.unknown
_1060699077.unknown
[] 0.2110 fk
73MPa
0.21
0.21
fk
fmin
30
30.0
22.0
25.0
25
25.0
18.0
22.0
20
20.0
14.0
16.0
15
15.0
10.0
12.0
10
10.0
6.5
7.5
_1060698101.unknown
-5
[]
-6. 1
[]
(
8 8-1 0.25 0.250.600.60
5.0 5.0%10.0%10.0% []
8-2 sbsssb
s[]
8-3 a
[
8-4
[]
8-50.8C0.8C0.8
8-6Q235AFQ235Q/mm2(ABCD)(FBZTZ)
Q235AFQ235D235Q235DQ235AF, Q235DQ235AF Q235AFQ235D[] 195Q215Q235Q255Q275
8-7IIVIIV235II III IV,
[] II III IV, HRBHRB335 HRB400HRB500
8-8 15201002002
[]
8-10 42.442.8kN; 62.0kN63.4kN126070.671.4mm,
1.
s =(394+375)2 = 385 N/mm2
_1061624560.unknown
_1061624575.unknown
b =(548+561)2 = 555 N/mm2
=(17.7+19.0)2 =18.4%
_1061624822.unknown
_1061624980.unknown
_1061625211.unknown
_1061624683.unknown
s1s2 335 N/mm2, b1b2 490 N/mm2, 16%II2. s/b = 385/555 =0.69II0.65~0.75
9 9-16123
156[]
9-2602012.8%49.4
= 49.4[1+0.0512.8-12]= 49.6 MPa
_1061798626.unknown
10 10-110.71.0cm3170
()60010001.01.1gcm3
10001 gcm3
10-2 1
10-3 []
10-4
[]
10-5 1.1
[]
10-6
10-7 m
[]
10- 8 70%90%1030100110
218
10-9
[]
10-10
[]