Ultra Foamed Concrete (UFC) is manufactured using special types of admixtures and is available in a wide range of densities to suit your application and requirements. The product is easily placed with no compaction required and can be produced onsite by our foam generating units.
UFC can achieve strengths from 2.5 to 5 N/mm2 and our unique production process allows us to produce an extremely wide range of dry densities from as low as 500kg/m3 up to 1800kg/m3. For strengths and densities outside of this range our team will work with you to provide a suitable solution.
The fluid nature of UFC allows the concrete to flow free even into the smallest of spaces making it highly suitable for void fill applications. UFC also exhibits no settlement characteristics that may occur with granular fill materials allowing a much more stable fill.
UFC is ideal for filling voids such as disused fuel tanks, sewer systems, pipelines and culverts – particularly where access is difficult. Good thermal insulation properties of the material make foamed concrete most suitable for sub-screeds and filling under-floor voids.
The new technology Ultra Geopolymer Concrete (UGPC) is a promising technique and eco-friendly alternative to OPC. UGPC is produced by a polymeric reaction of alkaline liquid with source material of natural minerals or by-product materials without cement.
Ultra High Early Strength Concrete (UHESC) is a range of high early-strength concrete that speed up construction by allowing quick release of formwork. In an ever demanding and extremely competitive environment with tight deadlines, speed and efficiency are critical. The quick setting times of our UHSC enable users to dramatically increase the productivity of the construction process. UHSC has been developed for fast-track construction, thinner sections, carriageway replacement, airport hard standings, warehouses and precast structures.
Ultra High Strength Concrete (UHSC) may be defined as concrete with specified characteristic cube strength of 50N/mm2 and above. Strength levels of 50 N/mm2 and even higher are being used for both precast and in-situ works. The main applications for UHSC in-situ concrete construction are in offshore structures, columns for tall buildings, long-span bridges and other highway structures. The main advantage is the reduction in size of compression elements and/or the amount of longitudinal reinforcement required.
The methods and technology for producing high strength concrete are not substantially different from those required for normal strength concrete. The target water/cement ratio will be in the range of 0.30–0.35 or even lower.
Superplasticisers / high range water reducers are used to achieve maximum water reduction. Silica fume (microsilica) or metakaoline can be used to enhance the strength at high levels.
UHSC is required in engineering projects that have concrete components which must resist high compressive loads. UHSC is typically used in the erection of high-rise structures. It has been used in components such as columns (especially on lower floors where the loads will be greatest), shear walls, and foundations. UHSC are also occasionally used in bridge applications as well.
In high-rise structures, high-strength concrete can be used. Not only has this special concrete made such projects feasible due to load capacity, it has also allowed the reduction of column and beam dimensions. Lower dead load results in reducing the loads associated with foundation design. Also, owners are also benefited economically since the amount of rentable floor space, primarily on the lower floors, increases as the space occupied by the columns decrease.
UHSC is occasionally used in the construction of highway bridges. UHSC permits reinforced or prestressed concrete girders to span greater lengths than normal strength concrete girders. Also, the greater individual girder capacities may enable a decrease in the number of girders required.
UHSC resists loads that cannot be resisted by normal-strength concrete. Not only does high strength concrete allow for more applications, it also increases the strength per unit cost, per unit weight, and per unit volume as well. These concrete mixes typically have an increased modulus of elasticity, which increases stability and reduces deflections.
ULTRA LIGHT WEIGHT CONCRETE (ULWC) is a light weight concrete using selective grades of expanded polystyrene beads (EPS) as thermal insulating aggregates. ULWC is produced by mixing Cement, Sand, EPS beads and Chemical admixtures.
ULWC combines the construction ease of concrete with the thermal insulation properties of EPS and can be used for a very wide range of application where lighter loads or thermal insulation or both are desired.
ULWC mix contains EPS beads, Chemical Admixtures, OPC, Fly Ash Fine Aggregate and Water. The Mix proportion shall be as pre - approved by ULTRA RMC representative.
The ULWC will be supplied at site in Transit Mixer and can be pumped at the required level.
Spread and finish ULWC using trowel. Avoid compaction using vibrator and lightly-compact using trowel. Protect the direct exposure from sun by covering up with plastic sheet or shade to avoid quick loss of water from the mix.
ULWC requires water sprinkling once it reaches to initial setting. Fog spray is preferred to avoid any undulation during walking over fresh placements. Water ponding is not required.
ULWC requires Topper. Concrete surface shall not be left without any topping. Preferably Tiles or Mortar finish can be done.
Although pervious concrete has been used for over 50 years, only recently has its stormwater management potential been recognized. It creates a pavement that allows infiltration of rainwater rather than creating runoff. Because of the infiltration, ground water supplies are recharged and pollutants are treated.
Ultra Pervious Concrete's (UPC) mass consists of an interconnected void structure, which allows water to flow through at very high rates. Typically, when cast on a sandy subgrade soil, the pavement will infiltrate stormwater at a higher rate than that of the soil below.
Drainage design of a pervious pavement system should assume the pavement surface is not a limiting factor. The runoff coefficient or curve number of the paved area should be that of the subgrade soils in the compacted state. Over-compaction of the subgrade during construction will prevent necessary infiltration.
Structurally, pervious concrete is weaker than plain concrete with compressive strengths less than M10. Due to the lower strengths, pervious concrete pavements are acceptable for light duty applications such as car parking facilities, pedestrian areas, and low traffic pavements.
Pervious concrete pavements may require maintenance to preserve the infiltration capacity. To prevent clogging of the pavement: prevent runoff from adjacent bare or landscaped areas, prevent vehicles from tracking soil onto the pavement, and prevent organics from falling onto the pavement surface.
Pervious concrete pavements are commonly used for parking areas and other light duty applications.
Placement and finishing techniques for pervious concrete are different from plain concrete. Pervious concrete is actually cast from a no-fines concrete mixture, which will not flow. It must be placed with specialty equipment to encourage consolidation without collapsing the void structure. Further, the water content of the fresh concrete must be carefully controlled.
Pervious concrete must be cured for seven days before opening to traffic. Every member of the project team (engineer, architect, general contractor, paving contractor) must work together to protect the pavement during the curing period.