課程名稱︰工程材料學
課程性質︰必修
課程教師︰周中哲 副教授
開課學院:工學院
開課系所︰土木系
考試日期(年月日)︰2010年4月30日
考試時限(分鐘):110分鐘
是否需發放獎勵金:是
(如未明確表示,則不予發放)
試題 :
I. True and False (20) 是非題(20)
[Right: Plus two points; Wrong: minus two points; No Answer: no points]
[答對得兩分,答錯扣兩分,不答不給分(os: 幾歲了還在玩倒扣...)]
1. Basalt is a metamorphic rock.
玄武岩是變質岩。
2. Perlite is a light weight natural rock.
珍珠岩是輕質自然礦石。
3. Concrete compressive strength after curing 7 days is about 60% of that
after curing 28 days.
混凝土的抗壓強度在養護7天的時候大約是養護28天時的60%。
4. The SSD condition represents the state of moisture when the surface of the
particle stays wet.
飽和面乾狀態是指顆粒表面的狀態是濕濕的。
5. Hydration is always accompanied by absorption of heat.
水化作用通常會伴隨熱的產生。
6. When high early strength of concrete is required, type I of Portland cement
should be uesd.
如果要使用有早強效果的混凝土,要用波特蘭水泥一號。
7. The lime, silica, and alumina are the raw materials used in manufacture of
Portland cement should be used.
石灰石、矽石、鋁石是做波特蘭水泥的原料。
8. Sea water is considered to be danger to the concrete.
海水對混凝土來說是危險的。
9. Metamorphic rocks are generally distributed in the north part of Taiwan
Island.
台灣的變質岩通常分布在北部地區。
10.Slate is change from the sandstone during the metamorphic action.
板岩是從砂岩變質來的。
II Explanation (45) 名詞解釋 (45)
[Explain as clear as possible(盡你所能解釋清楚)]
1. Describe what is the bulk specific gravity and apparent specific gravity.
描述什麼是bulk比重和apparent比重。(10分)
2. Describe the step in the manufacture of cement by the wet process.
描述水泥的濕過程製造法的步驟。(10分)
3. What are the four major compounds of Portland cement? Please also comment
on the rate of reaction with water.
波特蘭水泥的四種主要的化合物是什麼?並且說明四種物質和水作用的反應速率。
(10分)
4. How to make concrete in terms of good strenth?
如何製造強度較好的混凝土?(10分)
5. Describe how to cast concrete in water of the construction of a wall
underground.
描述如何在水底膠製混凝土構造物?(5分)
III Computation (35) 計算(35)
1. Estimate the modulus of rupture and the modulus of elasticity of
normal-weight concrete with the specified concrete strength of 3000 psi.
估算強度3000psi混凝土的破裂模數和彈性模數。(5分)
2. Determine the field mix proportions using the following data.
請利用以下的資料計算出混凝土的配比。(30分)
[表格請參閱課本 這裡很難打出來 QQ]
a. Concrete is used for slab with the thickness of 6.0 in. and clear
reinforcement spacing of 2.0 in. between individual bars.
混凝土樓版設計為6吋厚,然後要保留2吋的空間放鋼筋。
b. Specified compressive strength of concrete = 3000 psi.
設定混凝土的抗壓強度為3000psi。
c. Concrete slump = 2.5 in.
混凝土攤度2.5吋。
d. Using air-entrained concrete with the average of the range of air
content in Table 3.7
使用充氣混凝土,請查表3.7
e. Specific gravity of coarse aggregate = 2.5
粗骨材的比重是2.5
f. Moisture content of coarse aggregate = 1.5%
粗骨材的含水量是1.5%
g. Absorption capacity of coarse aggregate = 1.0%
粗骨材的水分吸收容量是1.0%
h. Dry-rodded weight of coarse aggregate = 120 pcf
粗骨材的乾密度是120pcf
i. Specific gravity of fine aggregate = 2.0
細骨材的比重是2.0
j. Moisture content of fine aggregate = 8%
細骨材的含水量是8%
k. Absorption capacity of fine aggregate = 4.0%
細骨材的水分吸收容量是4.0%
l. Fineness modulus of fine aggregate = 2.8
細骨材的細度模數是2.8
m. Specific gravity of cement = 3.15
水泥的比重是3.15
n. Density of water = 62.4 pcf
水的密度是62.4pcf
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