ConcreteP7B

Good site: http://www.simscience.org/cracks/advanced/concrete2.html http://www.howconcreteworks.com/types_of_concrete.html Recipe Ideas w/ sources: > http://www.cement.org/basics/concretebasics_airentrained.asp
 * http://www.associatedcontent.com/article/529545/mixing_your_own_concrete_the_recipe.html
 * 41% gravel aggregate
 * 26% sand
 * 11% portland cement
 * 16% water
 * 6% air

>> >> Brand Name Ideas:
 * http://www.tpub.com/content/construction/14043/css/14043_150.htm
 * **Ingredients of Portland Cement:**
 * lime, silica, iron oxide, alumina.
 * manufactured from limestone mixed with shale, clay, or marl.
 * 2,700°F
 * The strength properties of the concrete are inversely proportional to the water/cement ratio (by weight) which should be kept below .60. This means the weight of the water should not be more than 60% that of the cement. A higher ratio will produce a more plastic or fluid mix, but one that is likely to be deficient in strength and surface qualities.

Logo Ideas:


 * Price per ingredient:**

$8.49 for 47lbs. // __8.49__ = __..__ __x__ 47 ... 296.296 2,515.55 = 47x // http://www.acehardware.com/product/index.jsp?productId=2041962&CAWELAID=109365284
 * **Price of Portland Cement:** //(for project: $53.52)//
 * 53.52 = x**

__4.49__ = __.__ __x__ 50 ... 740.740 3,325.92 = 50x ****66.52 = x** http://www.acehardware.com/product/index.jsp?productId=2041963&CAWELAID=109369780 $55.00 for 2,000lbs __55.00__ = __x__ 2,000 814.815 44,814 = 2,000x http://www.earthproducts.net/products/gravel.html
 * **Price of Sand****:** //(for project: $66.52)//
 * $4.49 for 50lbs.
 * **Price of Gravel Aggregate** //(for project: $22.41)//
 * 22.41 = x**

> PERRI: A brief introduction with an analysis of the qualities of concrete that will be needed for this purpose, the problems associated with making concrete that impact its usefulness, and the particular problems related to concrete that were brought to light by the earthquake in Haiti > KELSEY: An equation that shows the materials (reactants) needed to make the concrete and the product(s) formed
 * KELSEY: A description of how your brand of concrete will be prepared (mixed and dried)
 * PORTLAND CEMENT + H2O + ROCK = HARDENED CONCRETE + ENERGY(HEAT)
 * •JORDAN: The amount (by percentage and mass) of each material in your concrete

To find the amount of each ingredient i needed i looked at the percent out of 2000 in the recipe. I used the equation to find the amount. In the case of gravel aggregate; there is 41% gravel aggregate, the equation is 41/100 = x/2000, I then simplify to 100x = 2000 (41). This equation is then solved, the number that is equaled to x is the amount of that ingredient needed. This process is repeated for each ingredient. __Gravel Aggregate__ 100x = 2000 (41) 100x = 82000 x = 820 pounds gravel aggregate

__Sand__ 100x = 2000 (26) 100x = 52000 x = 520 pounds sand

__Portland Cement__ 100x = 2000 (11) 100x = 22000 x = 220 pounds portland cement

__Water__ 100x = 2000 (16) 100x = 32000 x = 320 pounds water

__Air__ 100x = 2000 (6) 100x = 12000 x = 120 pounds air

> || Cement || 7-15% || > || Water || 14-21% || > || Aggregate || 60-80% ||
 * Typical Composition by Volume ||

> • An inventory of materials that will be left unused when the product is made > PERRI: The name of your product and the logo used to identify it, with an explanation if needed
 * • JORDAN: A cost analysis (in table form) of the materials needed to make your concrete, including (but not limited to) the sources of your materials and the amount of each that must be purchased
 * paving stones with the leftover mix.
 * • Calculations with explanations typed out
 * [|Logo and name.ppt]