General Considerations for Workability of Concrete

workability of concrete

General Considerations for Workability of Concrete Workability Workability represents consistency & cohesiveness of concrete General Considerations for Workability Water content The higher the water content, the higher will be the fluidity of concrete, which is one of the important factors affecting workability. a/c Ratio The higher the aggregate/cement ratio, the leaner is the concrete In … Read more General Considerations for Workability of Concrete

Various Strands of Mix Designing, Significance & Specific Principles

Specific Principles

Mix Proportioning & Strands of Mix Design Mix Proportioning Concrete Mix Proportioning is the science of deciding relative proportions of ingredients of concrete, to achieve the desired properties in the most economical way. Strands Of Proportioning Absolute Volume Methods IS Method ACI Method Road Note No. 4 Method DOE Method Weight Methods USBR Method Trial … Read more Various Strands of Mix Designing, Significance & Specific Principles

Concrete as a Structural Material | Advantages | Types

Concrete Material

Concrete as a Structural Material Concrete Concrete is an artificial conglomerate stone made essentially of Portland cement, water, and aggregates. It is a Composite material that consists essentially of a binding medium within which aggregates are embedded Binder is formed from a mixture of hydraulic cement and water. Concrete as a Structural Material Most widely … Read more Concrete as a Structural Material | Advantages | Types

Green Buildings for Quality Living | Merits | Criteria

Green Building

Green Buildings for Quality Living Introduction Green buildings are eco-friendly, resource efficient and are very energy efficient and are designed and commissioned to ensure they are healthy for its occupants. They are more comfortable and easier to live with due to low operating and owning costs. Merits Lower operating costs (by 30%- 40%) Improve occupant … Read more Green Buildings for Quality Living | Merits | Criteria

Flood Routing by Reservoir | Various flood routing Strategies

Flood Routing by Reservoir Safety Inspection of Dams The dams are national property – constructed for the development of the national economy and in which large investments and other resources have been deployed. The safety of the dam is a very important aspect for safeguarding the national investment and the benefits derived by the nation … Read more Flood Routing by Reservoir | Various flood routing Strategies

Activated Sludge Process and Kinetics of ASP

Flow Diagram of ASP

Activated Sludge Process and Kinetics of ASP     Introduction Activated Sludge Process is the suspended-growth biological treatment process, based on providing intimate contact between the sewage and activated sludge. The Activated Sludge is the sludge obtained by settling sewage in presence of abundant O2 so as to enrich with aerobic micro-organisms. Activated sludge in … Read more Activated Sludge Process and Kinetics of ASP

Pavement Design (with examples) | Complete Data

pavement purpose

Pavement Design (with examples) Outline Pavement Purpose Pavement Significance Pavement Condition Pavement Types Flexible Rigid Pavement Design Example Pavement Purpose Load support Smoothness Drainage Pavement Significance How much pavement? –        3.97 million Centerline miles in U.S. –        2.5 million miles (63%) are paved –        8.30 million lane-miles total –        Largest single use of HMA and … Read more Pavement Design (with examples) | Complete Data

Rehabilitation and Repair of RC, Steel and Pre-stressed Bridges

shows concrete jacketing of a column

Rehabilitation of RC, Steel and Pre-stressed Bridges Introduction Modern bridge infrastructure comprises of primarily concrete (reinforced or pre-stressed) and steel structures. Over the service life of a bridge, its constituent materials are continually subjected to fatigue and wear-tear due to dynamic vehicular loads. Overloading due to increase in wheel loads and regular exposure to aggressive external environment … Read more Rehabilitation and Repair of RC, Steel and Pre-stressed Bridges

What Is Cement? Manufacturing, Composition & their Functions

Cement Clinkers

What Is Cement? Manufacturing, Constituents & their Functions Material with adhesive and cohesive  properties. Any material that binds or unites  – essentially like glue Function Of Cement to bind the sand and coarse aggregate together  to fill voids in between sand and coarse  aggregate particle  to form a compact mass Types of Cement 2 types … Read more What Is Cement? Manufacturing, Composition & their Functions