Nafuclar range of surface retarders for production of exposed aggregates concrete finishes is manufactured by utilizing latest polymer technology of MC-Bauchemie Germany by MC-Bauchemie (India) Private Limited. Nafuclar is used for roughening the concrete surfaces to enable keying of future plasters to obtain better bonding.

Nafuclar is available in several grades like W 32, W 16, W 08, W 04, for different sizes of aggregates and for different depths of etching. Nafuclar S is also available for providing sand faced effect on the surfaces. These properties of Nafuclar enable the architect to design the surfaces and exteriors and interiors in various types. Rounded and coloured aggregates can be incorporated in the mix to give several effects. Nafuclar is also an excellent aid for precast manufacturers of vases, flowerbeds, ashtrays, garden paving, kerbstones, etc. The use not only imparts the surfaces aesthetic view but also avoids the dusting of surfaces, as cement slurry does not come into contact with foot traffic etc.

Nafuclar in normal face down process should be applied to the formwork and allowed to dry. It has mould release properties therefore additional form oil is not necessary. A special grade of Nafuclar called Nafuclar P 20 is available for spraying on the wet surfaces, this enables exposed aggregate surfaces on both the sides for compound walls, partition walls etc. The concrete normal or with special aggregates can be cast in the normal fashion. After opening the form work the next day, the surfaces should simply be cleaned with a jet of water to obtain a flawless exposed aggregate surfaces with even depth of etching. By virtue of formulation only the top cement skin is retarded and other aggregates are more firmly bound in the mass of concrete to avoid falling off of the aggregates.
Finnish company Betolar expands to Indian concrete markets with a cement-free concrete solution
Betolar, a Finnish start-up, and innovator of geopolymer concrete solution Geoprime®, has expanded its operations to Europe and Asian markets including India, Vietnam and Indonesia. Betolar’s innovation Geoprime® is the next-generation, low carbon

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Why Fly Ash Bricks Are Better Than Clay/Red Bricks
It is estimated that in India each million clay bricks consume about 200 tons of coal and emit around 270 tons of CO2; on the other hand, with fly ash bricks production in an energy-free route, there are no emissions. Dr. N. Subramanian, Consulting

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Low Fines, Low Viscosity, Self-Consolidating Concrete for Better Impact on CO2 Emissions
Production of low fines SCC with increased robustness in a highly flowable, less viscous condition meeting true SCC specifications is now a reality to help realise the architect’s and engineer’s dream of various complex profiles and shapes in

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Methods & Factors for Design of Slabs-on-Grade
Sunitha K Nayar, gives the grouping of slabs-on-grade based on the design philosophies and a brief overview of the different design methods, the commonalities between design strategies in terms of the input parameters, assumed and estimated parameters, and the

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FIBERCRETE®: Synthetic Fibers for Concrete Reinforcement
Kalyani Polymers is offering world-class made-in-India Synthetic Micro & Macro Concrete Fiber Products for the Construction Industry under the brand name FIBERCRETE®. Concrete is an integral part of any construction project, it can be roads, tall structures

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Climate Control Concrete
Leading cement and concrete maker ACC has unveiled a revolutionary thermal insulating climate control concrete system in India. Sridhar Balakrishnan, MD & CEO, ACC Limited, discusses its attributes, applications, and benefits for home builders, architects

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Innovations in Crack Bridging with Self-Healing Bacteria in Concrete
Dr. Manjunatha L R, Vice President - Direct Sales & Sustainability Initiatives, and Raghavendra, Senior officer, JSW Cement Limited, discuss bacterial concrete that can meet the requirements for strength, durability, and self-healing of cracks.

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Sustainable Development Through Use of Self-Curing Concrete
Dada S. Patil, Assistant Professor, Civil Engineering Department, AIKTC, Panvel, Navi Mumbai, Maharashtra; Dr. S. B. Anadinni, Professor & Associate Dean (Core Branches), School of Engineering, Presidency University, Bengaluru; and Dr. A. V. Shivapur, Professor

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Developing a Corrosion Resistant RCC Structure
Samir Surlaker, Director, Assess Build Chem Private Limited, emphasizes the importance of a clear cover for a concrete structure since concrete as a porous material needs protection of its reinforcement. Along with the thickness (quantity) of cover, the porosity of

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Quest for Higher Strength Concrete From HSC to UHPC
Concrete technology has come a long way since the Romans discovered the material, with a number of ingredients, which include a host of mineral and chemical admixtures, besides of course, the Portland cement, aggregates (coarse and fine), and water. These ingredients

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Modelling Methods for Protection of RCC Structures
Anil Kumar Pillai, GM, Ramco Cements, discusses two major softwares (Life 365 and DuraCrete), used in the industry for protection of RCC structures. The common design approach is faulty because we consider only the loading aspect, whereas the environmental aspect is equally

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Bajaj Reinforcements LLP - Introduces Fibre Tuff heavy-duty synthetic fibres that offer a range of benefits to concrete
Fibre Tuff, macro synthetic polypropylene fibres, are heavy-duty synthetic fibres that are specially engineered for use as secondary reinforcements, providing excellent resistance to the post cracking capacity of concrete. They are replacing steel fibres in a range

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Use of Headed Bars in Reinforced Concrete Design
Reinforced concrete design and construction practice has historically focused on the use of bonded straight or bend rebar as a method for rebar anchorage. This relies on bond integrity between the rebar and the concrete so that sufficient anchorage

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Innovation easy, effective and economical tool for asset creation
Innovation and entrepreneurship are essential ingredients in building a successful commercial venture. The ways in which these two concepts fuel enterprise are something entrepreneur's never stop exploring. There is no doubt that innovation were

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Reactivity of Alite and Belite towards Sustainability of Concrete
Alite and belite are the predominant phases of Portland cement formulation. Alite is impure tricalcium silicate (C3S) and belite is impure dicalcium silicate (C2S). The impurities are an integral part as cement is manufactured

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Innovative, Economic, Durable and Sustainable Concrete to last for +100 years of service life
Concrete is a versatile construction material and day by day its consumption is increasing globally. It is second only to water in the global consumption. No civil engineering structure is feasible without using concrete

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Nanospan India Pvt Ltd
The use of Graphene with concrete has been talked about and researched ever since Graphene was invented in 2010 which grabbed its inventors a Nobel prize. Nanospan is the first company in the world to break technological and commercial

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Fosroc: Building, Cementing & Supporting
Fosroc is the foundation of the JMH Group. It employs over 1700 employees in 17 operating companies based in Europe, the Gulf & Middle East, India, South Asia, and China. Through FGT, its trading company, it services another 50 countries

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Dextra Group
Established in 1983 by French expatriate entrepreneurs, the Dextra Group has a long history of growth and development, driven by strong entrepreneurship and innovation. It has diversified into three main activities: manufacturing, trading and freight forwarding

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Ferrochrome Ash Based Geopolymer Concrete
Jyotirmoy Mishra, Ph.D. Scholar, Department of Civil Engineering, Veer Surendra Sai University of Technology, Burla, Odisha, presents his research on the feasibility and compressive strength performance of geopolymer concrete

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