A Proctor compaction test in the laboratory on a borrow pit soil gives a maximum dry unit weight of 19 kN/m3 and optimum water content of 11.5%. The bulk unitweight and water content of the soil in the borrow pit are 17.2 kN/m3 and 8.2%, respectively. A highway fill is to be constructed using the soil. The specificationsrequire the fill to be compacted to 95% Proctor compaction.
(a) How many cubic meters of borrow pit material is needed for 1 m3 highway fill (i.e., compacted soil)?
(b) The water content at 95% compaction is 11% on the dry side and 12% on the wet side of the compaction curve. What is the minimum additional weight of water per unitvolume to
achieve 95% Proctor compaction?
(c) If the soil were expansive (i.e., volume increases with water content), what is the additional weight of water per unit volume to achieve 95% Proctorcompaction?
(d) How many truckloads of soil will be required for a 100,000 m3 highway embankment? Eachtruck has a capacity of 10m3.
(e) Determine the cost for 100,000 m3 of compacted soil based on the following data:
Purchase and load borrow pit material at site, haul 2 km round trip, and spread with 200 HP bulldozer = $25/m3; extra mileage charge for each km = $3.10/m3; round tripdistance = 10 km; compaction = $1.02/m3.
Determine the phase shift and attenuation from the input to the output for the ladder network in Figure 72.Jul 31 2020
Find the equation of the tangent line to the graph at its inflection point.Jul 22 2021
Discussion: Data Collection for Decision MakingFor this Discussion, review literature that discusses the ethical use of data and the role of information management in dec...Apr 19 2021
List two real life applications than can be modeled by the exponential function ƒ(x) = exApr 20 2021
Which of the following are not considered money market securities?Treasury billsmortgage-backed securitiesnegotiable certificates of depositcommercial paperYou purchase a...Jun 25 2021
Cash-strapped start-up companies generally do not spend a great deal of time and money on planning. Founders are so busy with the rudiments of business-finding customers ...Jul 22 2021
A person argues that a key element of a successful strategy is to find a way to keep your price as high as possible while keeping your costs low, and do it in a way that ...Apr 23 2020
The treasurer of Systems Company has accumulated the following budget information for the first two months of the coming year: March April Sales. $450,000 $520,000 M...Aug 13 2021
Statistics show that fraud losses are directly proportional to age and inversely proportional to education.Aug 18 2021
Comprehensive Problem 1 (The following information applies to the questions displayed below] On December 1, Year 1, John and Patty Driver formed a corporation called S...Apr 07 2020