Types of Concrete Mixes

concrete mixes

Nominal Mixes In the past the specifications for concrete prescribed the proportions of cement, fine and coarse aggregates. These mixes of fixed cement-aggregate ratio which ensures adequate strength are termed nominal mixes. These offer simplicity and under normal circumstances, have a margin of strength above that specified. However, due to the variability of mix ingredients … Read more

Equivalent Lateral Force Analysis in STAAD Pro v8i

Equivalent Lateral Force Analysis (Static Analysis) Seismic Analysis Using UBC And IBC Codes,Equivalent Lateral Force Analysis in STAAD Pro v8i [tubepress video=”luHWKX4aiHM”] Download Staad File Basic principle •When a building is subjected to an earthquake, it undergoes vibrations. •The weights of the structure, when accelerated along the direction of the earthquake, induce forces in the … Read more

Measuring Earthquakes | Measuring Earthquake

Seismographs record earthquake events

Measuring Earthquakes The power (magnitude) of an earthquake is measured on the Richter scale, using an instrument called a seismometer.The Richter scale is numbered 0-10 with 10 being the most powerful. The Richter scale is logarithmic – an earthquake measuring 7 is 10 times more powerful than one measuring 6 and 100 times more powerful … Read more

Structural Detailing and Bar Bending Schedule

Detailing of Steel

Structural Detailing and Bar Bending Schedule Detailing Functions design and design requirements cutting and bending of the reinforcement placing and wiring in position maintaining position of reinforcement pre-assembly of cages and mats concreting measurements of quantities economy in the use of steel Requirements Of Detailing simple for fabrication and placing the crack width must be … Read more

Technology for Disaster Resistant Shelters and Post-Disaster Shelters

Sand Bag House

Appropriate Technology for Disaster Resistant and Post-Disaster Shelters The greatest costs of rebuilding after the disasters goes to the infrastructure and human shelter.The need is ever more urgent to build self-help, emergency shelters which can become sustainable, permanent structures and are more resistant to more disasters. Eco-Shell An EcoShell is a concrete, thin-shell dome whose … Read more

ACI Method

Aci Method Of Mix Design Absolute Volume Method

ACI METHOD OF MIX DESIGN – Absolute volume method —   — Introduction ——In 1991,the American Concrete Institute(ACI) published guidaelines for normal, heavyweight and mass concrete mix design. —The absolute volume method of mix design as described by ACI committee 211 is presented. It has the advantages of simplicity that it: Applies equally well with … Read more

Biological Processes for wastewater treatment

Biological Processes for wastewater treatment

Biological Processes for wastewater treatment OUTLINE OF PRESENTATION An overview of biological wastewater treatment. Important aspects in microbial metabolism. Principal organisms responsible for wastewater treatment. key factors governing biological growth and waste  treatment kinetics. BIOLOGICAL PRINCIPLES OF WASTE WATER TREATMENT Biological TP: a method of contact between microbes and substrate. Suitable temperature, pH, nutrients etc. … Read more

Road Aggregates

Road Aggregates

Road Aggregates Man has used sand and stone for foundations for thousands of years. Significant refinement of the production and use of aggregate occurred during the Roman Empire, which used aggregate to build its vast network of roads and aqueducts. Aggregates forms the major part of pavement structure All bituminous and concrete surfacing are principally … Read more

Affordable Housing Project

Affordable Housing Project

Affordable Housing Project -NARSINGHPURA ,JAIPUR Objective To reduce the housing shortage in the State, especially in EWS/LIG categories. To bring down the cost of EWS & LIG categories of houses to affordable limits. To take up large scale construction of Affordable Housing (with focus on EWS & LIG housing.) To involve Private developers in the … Read more