首页
登录
职称英语
Concrete Another thing to remember in co
Concrete Another thing to remember in co
游客
2023-11-24
45
管理
问题
Concrete
Another thing to remember in connection with concrete is that you are not allowed very much leeway for errors in either measurements or location. Once you have a solid mass of concrete set in place, it is going to stay there. You have a difficult job ahead of you if you try to remedy a mistake. Make very sure, before you fill the form, that everything is where and how you want it.
There are numerous rules regarding the proper mixing handing, and finishing of concrete, but the essential one concerns the amount of water to use. The less water in the mix, the less the finished job will shrink. The less water used, the harder and more enduring the job after it has set.
The amateur concrete worker is plagued with two desires. One is to use enough Water to have the concrete nice and soft and easy to push around. You have been warned against that. The second is to take off the wooden forms too early, to see what the job looks like. That is really fatal. If the forms are stripped off too soon, while the concrete is still green, two things are likely to happen—you are almost sure to break off corners or edges, and you are likely to cause a major crack or defect in the body of the work. An excellent rule is to wait until you are sure the concrete is properly’ hardened, and then wait another day before removing the forms. [br] By the concrete being too "green", the author means that the concrete has
选项
A、become cracked.
B、not yet cured.
C、not dried out.
D、not settled in place.
答案
C
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3213845.html
相关试题推荐
Plagiarism,meaningtheundocumenteduseofanotherperson’swork,isthe
(1)Iremembermeetinghimoneeveningwithhispushcart.Ihadmanagedtose
(1)Iremembermeetinghimoneeveningwithhispushcart.Ihadmanagedtose
(1)Iremembermeetinghimoneeveningwithhispushcart.Ihadmanagedtose
(1)Iremembermeetinghimoneeveningwithhispushcart.Ihadmanagedtose
(1)IcanstillrememberthefaceswhenIsuggestedamethodofdealingwithw
(1)IcanstillrememberthefaceswhenIsuggestedamethodofdealingwithw
(1)IcanstillrememberthefaceswhenIsuggestedamethodofdealingwithw
A、Depictingaconcretecontext.B、Teachingrelevantbodylanguage.C、Collecting
A、Tohelpstudentstobetterrememberpoems.B、Tofacilitatetheprocessofcomp
随机试题
[originaltext]AnIslamicmilitantwebsitesaidyesterdayitwouldsoonrele
UsingLyricstoDevelopStudents’CriticalLiteracySonglyricscanbeusedeffe
Ourcompanyisseekinganexcellentindividualwithadegreeinmechanicalengin
Theissueofwhetherparentswhosechildrenareobeseshouldbechargedwith
唱片公司为歌手举办不售票歌友会时不需要报批。()
A.乳癌改良根治术+三苯氧胺治疗 B.肿块切除 C.乳腺单纯切除术 D.乳
关于立克次体说法错误的是A.革兰染色阴性 B.均为专性寄生在宿主细胞内繁殖
发生输血反应后首要的工作是A.核对各种资料B.保存好血袋C.积极治疗D.停止输血
关于窦房结细胞4期自动去极化的叙述,正确的是( )。A.K+外流进行性衰减是自
依据FIDIC《施工合同条件》,当工程师发现承包商使用的施工设备不能保证工程质量
最新回复
(
0
)