首页/ 题库 / [问答题]在混凝土中使用减水剂后取得的技术经济效果的答案

在混凝土中使用减水剂后取得的技术经济效果?

问答题
2022-04-02 21:47
查看答案

正确答案
①在保持用水量不变的情况下,可使混凝土拌合物的坍落度增大。
②在保持坍落度不变的情况下(即在保持一定工作度下),可使混凝土的用水量减少,抗压强度可提高。
③在混凝土抗压强度不变的情况下,可节约水泥。
④由于混凝土的用水量减少,泌水和骨料离析现象得到改善,可大大提高混凝土的抗渗性等耐久性性能。

试题解析

相关题目
boost的意思是:help or encourage to increase or improve
eloquent的意思是:fluent or persuasive in speaking or writing

A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.

A cabinet or space containing the controls or valves for the fixed firefighting system must be().
A cabinet or space containing the controls or valves for the fixed firefighting system must be().
在应用ORS液的过程中,错误的做法是()
在应用ORS液的过程中,错误的作法是()
什么叫ORS?如何配制?如何使用?
在应用ORS液的过程中,错误的是()
Mainly east 3 or 4 partly cloudy to overcast occasional rain()slowly south moderate or good.
()any case or suspected case of quarantinable disease,or any case of eruptive disease or any death be discovered,the local quarantine officer must be notified immediately.
Should any case or suspected case of quarantinable disease,or any case of eruptive disease or any death be discovered,the local Quarantine Officer must be()immediately.
Masters are()solely responsible for all damages or accidents of whatever kind resulting from the navigating or handling of their vessels by day or by night.
If he is a common carrier,he is absolutely responsible to the owner of the goods carried ()any loss or damage to them unless caused by an Act of God or the Queen’s enemies,or the inherent vice in the goods themselves,or the negligence of the owner of the goods,or a general average sacrifice.
系统中雷达状态包括Unknown、Operational(or ON)、Failed(or OFF)、Detached。
Owners are to be responsible for loss of or damage to the goods or delay in delivery of the goods only in case the loss,damage or delay has been caused by the improper or negligent stowage of the goods.This means that().
The carrier is liable for loss of or damage to the goods or delay in delivery caused by fire,()the claimant proves that the fire arose from fault or neglect on the part of the carrier,his servants or agents.
Shutdown price(or point,or rule) 停业价格(或停业点、停业原则)
翻译:With Average or With Particular Average(WA or WPA)()
()shall be liable for loss of and damage to the Vessel and/or goods arising or resulting from inaccuracies in stating the description,quantity,weight,measurement or contents.
广告位招租WX:84302438

免费的网站请分享给朋友吧