Ads
related to: 4000 psi concrete delivery- Top 4 Quotes For You
We've Found Pros Near You,
Professional Repairs, Always.
- Find Trusted Contractors
We Work with Great Pros,
Gain Peace of Mind at Low Price!
- Look After Your Home
Earlier Repairs are Less Costly,
Get A Quote Today, Save Tomorrow.
- No Stress Repairs
From Consult to Clean Up,
No Nonsense Repairs.
- Wide Range of Repairs
No Job Too Big or Small,
Friendly Pros, Ready to Help
- Convenient Repairs
Quotes Delivered Instantly,
Save Time, Money & Effort!
- Top 4 Quotes For You
Search results
Results From The WOW.Com Content Network
An example is "Concrete, 4000 psi (30 MPa)," which is the description of the item. In the cost database, an item is a row or record in a table (of items) and the description is a column or field for that record. Concrete may also be considered to be a material resource. In some systems, estimate line items and resources are the same, in other ...
Pervious concrete has a common strength of 600–1,500 pounds per square inch (4.1–10.3 MPa) though strengths up to 4,000 psi (28 MPa) can be reached. There is no standardized test for compressive strength. [15] Acceptance is based on the unit weight of a sample of poured concrete using ASTM standard no. C1688. [16]
Regular concrete can typically withstand a pressure from about 10 MPa (1450 psi) to 40 MPa (5800 psi), with lighter duty uses such as blinding concrete having a much lower MPa rating than structural concrete. Many types of pre-mixed concrete are available which include powdered cement mixed with an aggregate, needing only water.
Concrete is a composite material composed of aggregate bonded together with a fluid cement that cures to a solid over time. Concrete is the second-most-used substance in the world after water, [1] and is the most widely used building material. [2] Its usage worldwide, ton for ton, is twice that of steel, wood, plastics, and aluminium combined. [3]
Concrete has a limited lifespan between batching / mixing and curing. This means that ready-mixed concrete should be placed within 30 to 45 minutes of the batching process to hold slump and mix design specifications in the US, [15] though in the UK, environmental and material factors, plus in-transit mixing, allow for up two hours to elapse. [16]
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!