There are various types of concrete for different purpose. Information on roller compacted, magnesium phosphate, polymer cement, green concrete, sulphate resistant, cold weather, self compacting concrete is provided.
PUMPED CONCRETE PUMP TYPES & SELECTION
WHAT IS PUMPED CONCRETE? Pumped concrete is the concrete which is transported to heights by means of pumping using concrete pumps. This method is used where large quantity of concrete work is involved at greater height, where other means of transporting is not easy to do. Concrete pumps have been...
WHAT IS PUMPED CONCRETE? Pumped concrete is the concrete which is transported to heights by means of pumping using concrete pumps. This method is used where large quantity of concrete work is involved at greater height, where other means of transporting is not easy to do. Concrete pumps have been...
TRANSPARENT (LIGHT TRANSMITTING) CONCRETE
Transparent concrete also called as translucent concrete or light transmitting concrete is achieved by replacing aggregates with transparent alternate materials.
Transparent concrete also called as translucent concrete or light transmitting concrete is achieved by replacing aggregates with transparent alternate materials.
ADVANCE CAST IN PLACE CONCRETE IN STRUCTURE REPAIRS
Structure Repair with Advance Cast in Place Concrete Types Cast-In-Place Fiber-Reinforced Concrete When metallic or polymeric fibers (made up of steel, glass or synthetic and natural plastics) are added in conventional concrete to get greater resistance to plastic shrinkage, drying shrinkage, and cracking, the resulting material is called fiber-reinforced concrete. Fiber-reinforced...
Structure Repair with Advance Cast in Place Concrete Types Cast-In-Place Fiber-Reinforced Concrete When metallic or polymeric fibers (made up of steel, glass or synthetic and natural plastics) are added in conventional concrete to get greater resistance to plastic shrinkage, drying shrinkage, and cracking, the resulting material is called fiber-reinforced concrete. Fiber-reinforced...
APPLICATION OF FERRO-CEMENT IN CONSTRUCTION
Ferro-cement is a relatively new construction material consists of wire meshes and cement mortar. Applications of Ferro-cements includes housing, marine, agricultural, rural energy, anticorrosive membrane treatment.
Ferro-cement is a relatively new construction material consists of wire meshes and cement mortar. Applications of Ferro-cements includes housing, marine, agricultural, rural energy, anticorrosive membrane treatment.
MATERIALS FOR DAMP PROOF COURSE
Damp proof course (DPC) is a barrier of impervious material built into a wall or pier to prevent moisture from moving to any part of the building. Following are the materials generally used for damp proofing of structures: 1) Flexible Materials: The materials, which do not...
Damp proof course (DPC) is a barrier of impervious material built into a wall or pier to prevent moisture from moving to any part of the building. Following are the materials generally used for damp proofing of structures: 1) Flexible Materials: The materials, which do not...
CELLULAR LIGHTWEIGHT CONCRETE–FLY ASH BASED
Cellular Lightweight Concrete (CLC) is one of the recent emerging technology in making concrete. It has many advantages when compared to the normal conventional concrete. Fly ash is considered as one of the waste industrial product that cannot be easily disposed. It solves the problem of disposal of flyash...
Cellular Lightweight Concrete (CLC) is one of the recent emerging technology in making concrete. It has many advantages when compared to the normal conventional concrete. Fly ash is considered as one of the waste industrial product that cannot be easily disposed. It solves the problem of disposal of flyash...
NO-FINES CONCRETE & ITS MIX PROPORTION
No-fines concrete is a concrete from which the fine aggregate fraction has been omitted. This concrete is made up of only coarse aggregate, cement and water.
No-fines concrete is a concrete from which the fine aggregate fraction has been omitted. This concrete is made up of only coarse aggregate, cement and water.
THIN SHELL CONCRETE STRUCTURE–TYPES & FORMS
Special Forms for Concrete Shells A thin shell concrete structure, is a structure composed of a relatively thin shell of concrete, usually with no interior columns or exterior buttresses. The shells are most commonly flat plates and domes, but may also take the form of ellipsoids or cylindrical sections, or...
Special Forms for Concrete Shells A thin shell concrete structure, is a structure composed of a relatively thin shell of concrete, usually with no interior columns or exterior buttresses. The shells are most commonly flat plates and domes, but may also take the form of ellipsoids or cylindrical sections, or...
VACUUM CONCRETE: TECHNIQUES, EQUIPMENTS & ADVANTAGES
Water-cement ratio is detrimental for concrete. We always try to restrict the water-cement ratio in order to achieve higher strength. The chemical reaction of cement with water requires a water-cement ratio of less than 0.38, whereas the adopted water-cement ratio is much more than that mainly because of the...
Water-cement ratio is detrimental for concrete. We always try to restrict the water-cement ratio in order to achieve higher strength. The chemical reaction of cement with water requires a water-cement ratio of less than 0.38, whereas the adopted water-cement ratio is much more than that mainly because of the...
SELF COMPACTING CONCRETE WITH TESTS
For several years beginning in 1983, the problem of the durability of concrete structures was a major topic of interest in Japan. The creation of durable concrete structures requires adequate compaction by skilled workers. However, the gradual reduction in the number of skilled workers in Japan's construction industry has...
For several years beginning in 1983, the problem of the durability of concrete structures was a major topic of interest in Japan. The creation of durable concrete structures requires adequate compaction by skilled workers. However, the gradual reduction in the number of skilled workers in Japan's construction industry has...
AERATED CONCRETE & ITS PROPERTIES
Aerated concrete is made by introducing air or gas into a slurry composed of Portland cement or lime and finely crushed siliceous filler so that when the mix sets and hardens, a uniformly cellular structure is formed. Though it is called aerated concrete it is really not a concrete...
Aerated concrete is made by introducing air or gas into a slurry composed of Portland cement or lime and finely crushed siliceous filler so that when the mix sets and hardens, a uniformly cellular structure is formed. Though it is called aerated concrete it is really not a concrete...
MIX DESIGN OF ROLLER COMPACTED CONCRETE
Mix design proportioning methods for Roller Compacted Concrete RCC: Mix design proportioning methods for no slump concrete applicable for Roller Compacted Concrete. Materials Used in RCC mix design a) Cementitious materials: Cement content is generally low (typically 70 to 130 kg/m3). Any kind of Portland...
Mix design proportioning methods for Roller Compacted Concrete RCC: Mix design proportioning methods for no slump concrete applicable for Roller Compacted Concrete. Materials Used in RCC mix design a) Cementitious materials: Cement content is generally low (typically 70 to 130 kg/m3). Any kind of Portland...
TYPES OF CONCRETE WITH APPLICATIONS
Types of concrete with applications for different structural components like beams, columns, slabs, foundations are explained here. Special concrete with uses.
Types of concrete with applications for different structural components like beams, columns, slabs, foundations are explained here. Special concrete with uses.
APPLICATIONS OF REINFORCED CONCRETE
Applications of Reinforced Concrete is mainly due to its versatility, adaptability and resistance to fire and corrosion resulting in negligible maintenance costs.
Applications of Reinforced Concrete is mainly due to its versatility, adaptability and resistance to fire and corrosion resulting in negligible maintenance costs.
SLUMP FLOW TEST ON SELF COMPACTING CONCRETE
Slump flow test and T50cm test on Self Compacting Concrete The slump flow test is used assess the horizontal free flow of in the absence of obstructions. It was first developed in Japan for use in assessment of underwater concrete. The test method is based on the test...
ROLLER COMPACTED CONCRETE
Roller-compacted concrete (RCC) is a concrete of zero-slump consistency in its unhardened state used in pavement and dams. It is transported, placed, and compacted using earth and rockfill construction equipment.
MAGNESIUM PHOSPHATE CONCRETE
Magnesium Phosphate Concrete Magnesium phosphate concrete (MPC) is based on a cementitious system that is different from Portland cement. Rapid repairs of patches may be economically achieved by MPC. It has high bond strength and low shrinkage rates. Setting times of 10 to 20 min are...
POLYMER-CEMENT CONCRETE
Polymer-Cement Concrete Polymer-cement concrete (PCC), also called polymer-Portland-cement concrete (PPCC) and latex-modified concrete (LMC), is made by Portland cement and aggregate just like ordinary concrete but organic polymers dispersed in water (latex) are added at the time of mixing. The organic polymer is a substance composed...
DEPOLLUTANT PHOTO-CATALYTIC CONCRETE (DPCC)
The word photocataysis is a compound word made up of (1) photo or light and (2) catalysis or acceleration of a chemical reaction rate by addition of a catalyst. A catalyst is a substance which although combines with the reactants participating in a chemical reaction but remains unaltered. Hence...
GREEN CONCRETE
WHAT IS GREEN CONCRETE? Today the word green is not just limited to colour, it represents the environment, which is surrounding us. Concrete which is made from concrete wastes that are eco-friendly are called as “Green concrete”. The other name for green concrete is resource saving...
PERVIOUS CONCRETE: FUTURISTIC SOLUTION TO URBAN RUNOFF?
Pervious concrete is a special type of concrete with a high porosity used for concrete flatwork applications that allows water from precipitation and other sources to pass directly through, thereby reducing the runoff from a site and allowing groundwater recharge. The high porosity is attained by a highly interconnected...
HOT WEATHER CONCRETING
Placing Concrete in Hot Weather Caution needs to be applied when placing concrete in hot weather. Without the proper care, concrete may have reduced strength and will be very prone to cracking due to rapid drying. It also may stiffen quickly making finishing quite difficult. At...
COLD WEATHER / WINTER CONCRETING
Placing Concrete During Cold Weather If the temperature of fresh concrete is 55ºF., or greater -- and if the concrete is maintained at a temperature of 55ºF. or higher -- then winter concreting should be trouble-free. Approximate set time for concrete at 70ºF. is six hours. Set time...
STACKED LOG CONSTRUCTION
Log houses originated in Europe where they were hastily erected as hunting cabins. Stacked log homes today are elaborate structures worth several hundred thousand dollars in some cases. Coniferous trees are ideal for constructing stacked log houses are the timber can be obtained in long solid sections. Pine, cedar...
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