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![Concrete - Wikipedia, the free encyclopedia]()
en.wikipedia.orgConcrete is a composite material composed of water, coarse granular material (the fine and coarse aggregate or filler) embedded in a hard matrix of material (the cement or binder) that fills the space among the aggregate particles and glues them together.瀏覽：559 -
![鋼筋與混凝土的幾個問題- Yahoo!奇摩知識+]()
tw.knowledge.yahoo.com混凝土保護層對鋼筋有什麼影響? ... 1) psi 換算成kg/cm2 , 需乘以0.07 , 故3000psi* 0.07 = 210kg/cm2.瀏覽：1437
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瀏覽：1195
日期：2024-07-05
2007年11月13日 ... 你所指的水泥磅數，正確的講法是「混凝土設計強度」，單位 ... 一般常見的混凝土設計
強度為140~350kg/cm2 （公制單位），若換算成英制單位，則約是2000~5000 psi (
就是你所稱的磅數)，一般 ......
瀏覽：742
日期：2024-07-10
CONCRETE MIXES STATE MIXES 1500 psi CLASS A 606# 2000 psi CLASS C 605# 2500 psi CLASS D 725# 3000 psi CLASS E 648# 3500 psi CLASS F 716# 4000 psi CLASS G 686# 4500 psi CLASS H 676#...
瀏覽：1310
日期：2024-07-11
The load-bearing capabilities of concrete mixtures are expressed in terms of how many pounds per square inch (PSI) it can support before it cracks and fails. Standard concrete ......
瀏覽：527
日期：2024-07-09
Concrete has relatively high compressive strength, but significantly lower tensile strength, and as such is usually reinforced with materials that are strong in tension (often steel). The elasticity of concrete is relatively constant at low stress levels ...
Cold Weather Concrete Placement- How to Protect and Cure Concrete in the Cold - The Concrete Network
瀏覽：385
日期：2024-07-09
Tips for finishing concrete in the cold, including waiting for bleed water, using blankets, checking temperature, and more. ... Seasonal Pouring Tips Get guidelines for placing concrete by region and season throughout the U.S. So you're prepared and you'v...
瀏覽：1107
日期：2024-07-10
i am building a house in waynesvile, nc (3700 elevation). Would there be an advantage to pouring the footers and basement floor with 5000 psi instead of 3000 psi concrete. the local standard is 3000 psi at 6" for the floor, however i have see a lot of cra...
瀏覽：1486
日期：2024-07-06
HIGH STRENGTH CONCRETE MIX is a quality blend of Portland cement, graded sand, stone/gravel and other ingredients. It is designed to be used in applications at least 2 inches thick. Especially designed for structural and load bearing applications includin...
瀏覽：473
日期：2024-07-09
2011年11月16日 ... 3000指3000 psi ==> 即每平方英吋可承受3000英磅的壓力二.3500psi 當然較3000
psi強度好，混凝土 ......
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