Unit7Placingconcrete(工程管理專業(yè)英語)課件

1、 Unit Seven Placing ConcreteThe Main Contents All concrete shall be placed so as to produce a set concrete that is hard, durable, dense, free from honeycombing, formwork irregularities and other surface blemishes. For each concrete placement, the contractor shall provide the Engineer with written no

2、tice, a drawing and a pre-placement checkout sheet signed by the contractors appropriate supervisory personnel. The placing time, placing method and placing thickness of concrete are limited.第1頁，共19頁。Vocabularyhoneycombing n & adj 形成蜂窩狀；蜂窩現(xiàn)象； 蜂窩狀的formwork n 模板blemish n & vt 瑕疵，污點(diǎn)；有損的完美，玷污checkout n

3、檢驗(yàn)（單），校驗(yàn)（單）cleanup n 清理，清掃，清除（污染物），整頓discharge vt 放出，流出，開槍，發(fā)射，下（客），卸船，免除（義務(wù)、負(fù)擔(dān)） n （氣體、液體如水從管道）流出，排放出的物體 Unit Seven Placing Concrete第2頁，共19頁。Vocabularyaggregate n & vt 骨料，集料，聚集體，合計(jì)；使聚集，使積聚，總計(jì)達(dá) adj 聚合的，總數(shù)的，總計(jì)的，地聚成巖的barrow n 雙輪手推車，獨(dú)輪車slab n & vt 厚板，平板，厚片，混凝土路 面；把分成厚片，用石板鋪tipping vehicle 傾卸車bedding mort

4、ar 墊層砂漿 Unit Seven Placing Concrete第3頁，共19頁。Vocabularyhalt n & vt,vi 暫停，停止，中止；阻止，使停止，使中斷；停止，猶豫chute n & vt,vi 斜槽，滑道，降落傘；用斜槽或滑道運(yùn)送；順斜道或滑道而下segregate vt 隔離，分離，（使）分開initial set （混凝土或水泥漿）的初凝 Unit Seven Placing Concrete第4頁，共19頁。English-Chinese translation1. construction procedure 施工程序2. permanent work 永久工

5、程3. underground gallery 地下廊道4. construction joint 施工縫5. bedding mortar 墊層砂漿6. 混凝土澆筑 concrete placement7. 傾卸車 tipping vehicle 8. 傳輸帶 conveyor belt9. 模板 formwork10. （混凝土）初凝 initial set Unit Seven Placing Concrete第5頁，共19頁。At least 60 days before placing concrete in any major structure, the contractor s

6、hall submit to the engineer for his approval details of his proposed construction procedures including a description of the methods of the concrete placement. 對于大型結(jié)構(gòu)物的混凝土澆筑，承包商至少要提前60天將自己擬用的施工程序，包括混凝土的澆筑方法，呈送給工程師以獲批準(zhǔn)。 本句中submit 的賓語因較長而后置了，該句原型應(yīng)為：submit details of his proposed construction procedures

7、 including a description of the methods of the concrete placement to the engineer for his approval. Key Structures Unit Seven Placing Concrete第6頁，共19頁。For each concrete placement, the contractor shall provide the Engineer with written notice, a drawing and a pre-placement checkout sheet signed by th

8、e contractors appropriate supervisory personnel that demonstrate that foundation preparation, construction joints cleanup, formwork, installation of reinforcing steel, and all embedded items for the placement have been completed accoring to the Drawings or as specified. 對于每一次的混凝土澆筑，承包商應(yīng)提供給工程師一份書面通知，

9、一張圖紙和一份預(yù)澆筑核實(shí)清單。這份清單上要有承包商適當(dāng)?shù)谋O(jiān)理人員簽字，以表明基面準(zhǔn)備、施工縫的清理、模板、鋼筋的安裝、以及所有預(yù)埋件（是否）已按圖紙及規(guī)定要求準(zhǔn)備完畢。Key Structures Unit Seven Placing Concrete第7頁，共19頁。For each concrete placement, the contractor shall provide the Engineer with written notice, a drawing and a pre-placement checkout sheet signed by the contractors ap

10、propriate supervisory personnel that demonstrate that foundation preparation, construction joints cleanup, formwork, installation of reinforcing steel, and all embedded items for the placement have been completed accoring to the Drawings or as specified. signed by 以及that demonstrate 分別是分詞及that 引導(dǎo)的定語

11、從句，修飾限定對象均是a pre-placement checkout sheet。demonstrate后的that 引導(dǎo)的是demonstrate的賓語從句。 Key Structures Unit Seven Placing Concrete第8頁，共19頁。Concrete shall not be allowed to slide or flow down sloping surfaces, except in underground galleries, but shall be placed in its final position from skips, trucks, ba

12、rrows, down pipes or other placing machine or device or, if this is impossible, it shall be shoveled into position with care to avoid separation of the constituent materials. 澆筑時(shí)不允許將混凝土滑落而下，也不允許沿斜面下溜混凝土，除非在地下廊道澆筑。（混凝土澆筑）須用翻斗車、卡車、手推車、吊管、或其它澆筑機(jī)械設(shè)備將混凝土送至最終澆筑點(diǎn)；當(dāng)這些都行不通時(shí)，須用鐵鍬將混凝土小心鏟到（澆筑）位置，以防止混凝土各組成成分分離。

13、except in underground galleries以及if this is impossible均為插入語，注意將插入語前后部分連貫理解。 Key Structures Unit Seven Placing Concrete第9頁，共19頁。Comprehension ExercisesWill approval of construction procedures and methods of placement relieve the contractor of his responsibility for their adequacy? Why? No. Because th

14、e contractor shall remain solely responsible for satisfactory construction of the permanent works. Unit Seven Placing Concrete第10頁，共19頁。Comprehension Exercises2. What shall the contractor provide the Engineer with for each concrete placement? For each concrete placement, the contractor shall provide

15、 the Engineer with written notice, a drawing and a pre-placement checkout sheet signed by the contractors appropriate supervisory personnel. Unit Seven Placing Concrete第11頁，共19頁。Comprehension Exercises3. How long shall the discharge of concrete be completed when an agitator is used for transporting

16、concrete? How long shall the concrete be placed after it has been discharged? When an agitator is used for transporting concrete, the concrete shall be delivered to the site of the work and discharge shall be completed within 1.1/2 hours after introduction of cement to the aggregates except that whe

17、n the temperature of the concrete exceeds 21C, the time shall be reduced to 45 minutes. The concrete shall be placed within 20 minutes after it has been discharged. Unit Seven Placing Concrete第12頁，共19頁。Comprehension Exercises4. Shall concrete be allowed to slide or flow down sloping surfaces when co

18、ncrete placing in horizontal layers? Concrete shall not be allowed to slide or flow down sloping surfaces when concrete placing in horizontal layers, except in underground galleries. Unit Seven Placing Concrete第13頁，共19頁。 Unit Seven Placing ConcreteComprehension Exercises5. How long shall the bedding

19、 mortars be convered by concrete after the bedding mortar placed ? Bedding mortar shall be convered by concrete within 15 minutes of the bedding mortar placed. 第14頁，共19頁。Reading Material to arrange with sb設(shè)法與某人談妥或安排好某事項(xiàng)soundness 安定性 time of set 凝固時(shí)間loss on ignition 強(qiáng)熱失量certificate 證書，執(zhí)照，文憑；發(fā)給證明書reim

20、burse 償還，賠償 Unit Seven Placing Concrete第15頁，共19頁。Reading Materialheat of hydration 水化熱identification n. 鑒定，識(shí)別，認(rèn)同，身份證明permanent work 永久性工程lumpy 粗笨的，波浪起伏的，多塊狀物的contractor 承包商ASTM 美國材料試驗(yàn)協(xié)會(huì) Unit Seven Placing Concrete第16頁，共19頁。Analysing the sentencesThe contractor shall arrange with the suppliers to have silos set aside for exclusive use in this Contract. to arrange with sb：to talk/negotiate with sb in order to get or do sth，設(shè)法與某人談妥或安排好某事項(xiàng)。 文中該句的