Resource allocation in project management is deciding the resources for each activity. The project cost is the sum of indirect and direct costs.  Table Of Contents Methods to achieve Resource Allocation  A physical variable which is required for completion of activities is called a resource.  It can be manpower, space, material, time or money resources. The diagram which shows a variation in the requirement of resources with time is called resource usage profile or Histogram. The following are the two methods that are used for achieving the allocation of resources.  Res ..read more

Pert project management is a technique used for scheduling, controlling the projects. Pert is defined as Project evaluation and review technique. Table Of Contents Basics of Pert project management technique PERT uses the project network technique, critical path, activity float. It assumes that the activities of the project and their network relationships are well defined but if allows for uncertainties in activity durations. So pert technique is used for scheduling and controlling the projects whose activities possess considerable degrees of certainty in their performance time. Time estima ..read more

Critical path method is the technique of network to deal with large and complex projects. It is a project management technique.  What is the Critical path method [C.P.M] in project management?  Critical path method-example This method was developed in 1957 and  it is suitable for both civil and mechanical engineering projects.  This technique is useful to determine how best to reduce the time required to perform production, maintenance and construction and also to minimize the direct and indirect cost of the project.  Using this C.P.M, a planning engineer wil ..read more

Gantt chart is the graphical representation of materials and production schedules for various activities of the project.  It is a project management tool.  Table Of Contents What is the Gantt Chart and why it is important? Mr Henry, L. Gantt evolved a chart of planning and controlling the production of ordinate factories, which is known as a Gantt chart or Bar chart. The bar chart consists of two coordinates.  Horizontal coordinates Vertical coordinates The horizontal ordinate represents the duration required for completion of the activities  The vertical abscissa re ..read more

Prestressed concrete is the concrete in which internal stresses are introduced to the desired degree to counteract the stresses from external loads.Terminology and Prestressed Concrete materials The introduction of prestressing in reinforced cement concrete is done by tensioning steel reinforcement  IS:1343 deals with prestressed concrete structures. The following terminologies are used: Tendon Anchorage Transfer Debonding 1. Tendon To impart prestresses into the concrete, a stretched element used in a concrete member of the structure. In general, high tensile steel wires, bars, cable ..read more

Corrosive metal - Corrosion of metal involves chemical reaction with oxygen in the presence of water. Rust forms when Corrosion of steel occurs. Theories of corrosion for Corrosive metal Corrosive metal-Steel Beams The term corrosion used to state the conversion of metals by natural agencies into different compounds of oxides. The term rusting of steel in construction refers to corrosion of ferrous metals. Rusting is the formation of iron oxides. Given below theories of corrosion for Steel Chemical action theory Electrolytic theory Table Of Contents 1. Chemical ..read more

Concrete compressive strength- Cube tests are done to find the characteristic compressive strength of concrete. Specimens are used for Concrete testing.What is the Concrete compressive strength at 7 days and 28 days?  Concrete compressive strength For determining the characteristic compressive strength of concrete, cube tests are done using concrete specimens of cubical mould, size 15 cm x 15 cm x 15 cm  and  the cylindrical mould of size 15 cm dia x 30 cm height. The compressive strength test of the concrete cylindrical specimen is 0.8 times the strength of cub ..read more

Concrete mix design is the act of determining the quantities of cement, sand, aggregates and water to get the cheapest grades of concrete mix ratios. Best 5 methods of concrete mix design Given below 5 different methods of concrete mix design Minimum voids methods. Maximum density method, Abram's water-cement ratio. Experimental methods  Arbitrary methods Table Of Contents 1.Minimum voids method for concrete mix design  In this method, the quantity of sand should fill the voids of the coarse aggregates and the quantity of cement used should be such that it fills th ..read more

RCC in construction stands for  reinforced cement concrete. In RCC buildings steel is used as a reinforcing material to increase strength of concrete . What is  PCC and RCC in construction ?  RCC in construction PCC stands for Plain cement concrete. PCC consists of cement,sand,aggregates and water. In the previous post we have discussed about workability, importance of water cement ratio in concrete. In this post we shall discuss more about RCC and its ingredients of RCC in building construction.    RCC stands for reinforced cement concrete.Concrete i ..read more

Workability is the amount of work to produce full compaction when concrete is wet. It depends on the water-cement ratio in concrete. It is important to decide whether the concrete is suitable for pumping, self -levelling.  Important facts regarding workability Workability slump test 1. If more water is added to attain the required degree of workmanship, it results in the concrete of low strength and poor durability. 2. In-case concrete mixture is too wet, by changing the proportions of fine and coarse aggregate will not affect the strength of concrete and degree of w ..read more