Appendix A: the regular interval standard deviation graphs for the cube compressive strength and slump test34IntroductionConstruction industry primary objective is to transform the virtual designs into reality. Construction is a primitive job of human being and it has existed from the Stone Age. All our civilization replicates the growth of construction activities in various centuries. The present world is encroached with various modern construction activities throughout the world. Even though many modern hi-tech approaches and system are in place, but still most of these industries embossed with the conventional approach in all their process from design to construction.
The present competitive world growing in a faster pace which demonstrates that the civil engineering projects needs to be unique in all prospectus of the engineering. Further the recent economic down turn envisaged a huge negative impact in all industries globally, especially it gave a serious long term impact on the construction growth. Therefore construction industries need to re-visit their process approach in all aspects of their product realization. To be an effective player in the field of success at this most unfavourable economic conditions, construction process can be hijacked in a positive manner by the implementation of the most effective successful tool of the Toyota Production System – Lean production system.
Therefore, I tried an approach in implementing this lead production system principle in my real time project which I was involved during my occupation with Qatari Diar which is involved in investments in real estate in the region and aims at promoting better quality life. BackgroundThe Toyota Production System and its derivatives, such as lean production and agile manufacturing, have turned out to provide a sustainable competitive advantage to their adopters.
Newly understanding the practices for designing, improving and controlling integrated design and production processes are the major things that the Toyota Production System has focussed on achieving. It does organize the logistics involved in manufacturing automobiles and the actual manufacturing process. The major aims of the Toyota Production System were to come up with a design for inconsistency and overburden for and to enhance waste elimination. The production system was to provide a quality and cost effective system of eliminating waste that uses the least time possible.
The kinds of wastes handled in the Toyota Production System include: Transportation – where the material is shipped from the vendor to a certain location where it is processed, taken into the warehouse before being ferried to the assembly line. Lean suggests that this ought not to be the case; the material ought to be ferried from the vendor and directly taken to the assembly line for use after processing. This is a technique that is referred to as point-of-use-storage in lean. Over-production – where there is the level of production is far beyond that of the demand by the customer.
The lean principle that corresponds to this waste thus proposes the manufacture of products according to the customer demand. Excess motion which is usually caused by poor layout of work methods that are not consistent, poor housekeeping and the general flow of work. Excess inventory – this, if in excess of the amount to meet the demands by the customer usually affects the flow of cash and consumes the available space that could have been used for something else. Waiting by the operator for information, material, equipment among others things which are to be used in the machine operations.
Lean usually insists on the provision of all the required resources the basis of just-in-time, not too late or too early. Defects which waste the available resources by material consumption, labour consumption during the first time production, reworking the product and finally addressing any complaints from the customers afterwards. Processing that has no value added to it which include debarring, inspecting and reworking. Underutilized people – this is where physical, mental and creative are not used to the maximum as it’s expected.
This waste is commonly caused by the culture of the organization, poor flow of work, poor training, lack of hiring practises and an employee turnover that is beyond the expected amount.