Specifications
Cost effective and favourable technology solutions for high-head Francis Turbines
For high head turbines there is often a choice between Francis and Pelton. The main advantages of Francis turbines are that the dimensions will be smaller and the speed higher.... Read More »
RCC Roller Compacted Concrete in history
The first Roller Compacted Concrete (RCC) dam of the world was Alpe Gera at Sondrio in North Italy. It was executed from 1961 to 1964. The technology in that period... Read More »
Qualifications of Green Roof Systems
A typical green roof system includes: 1. Waterproofing Membrane 2. Protection Layer 3. Drainage Layer 4. Filter Layer 5. Substrates Soil Qualifications of the Protection Layer Protect the layers beneath... Read More »
Pre-cooled mass concrete on dam projects for application in hot climates
Hot climate can be defined as a combination of high ambient temperature, low relative humidity, wind velocity and solar radiation. Good conditions for placing concrete occur when temperatures are about... Read More »
Solutions for Swimming Pools
Outdoor Swimming Pools Two basic alternatives are available for outdoor swimming pools: in-ground pools and above-ground pools. In-ground pools are set into the ground, thus requiring ground excavation. Only solutions... Read More »
Concrete Roof Waterproofing with Torch-on Membrane
1. Surface Preparation Ensure that the surfaces are clean and free from all traces of loose materials, old coatings, curing membranes, release agents, laitance, oil, greases, etc. Remove structurally unsound layers and... Read More »