Effect of Admixtures on the Thermo-Physical Properties of Non Autoclaved Light Weight Block Using Marble Dust

Abstract:

In the present study, use of marble dust an inert filler produced by the marble cutting industries in the development of light weight block (LWB) of density 800 kg/m³ by non-auto clave method has been studied. Various mechanical and thermo-physical properties have been evaluated. It has been possible to replace cement by up to 20% when no additive is used. With the use of activator and super plasticizer at 50% replacement of cement by marble dust, compressive strength and water absorption are well within the Indian standard code 2185. With the use of accelerator and super plasticizer it is possible to reduce the de moulding time from 48 hrs to 6 hrs. Thermal conductivity of blocks varies from 1.16 to 2.30 [W/mK]. The variation in thermal conductivity depends upon its density which varies from 800 kg/m³ to 2400 kg/m³.

• Periodical: Key Engineering Materials (Volume 801)
• Pages: 365-370
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.801.365
• Online since: May 2019
• Authors: Vivek Sood*, S.K. Negi, B.M. Suman
• Keywords: Activator, Compressive Strength, Light Weight Block (LWB), Marble Dust, Particle Size Distribution, Super Plasticizer, Thermal Conductivity

References

[1] International Journal of Engg. Sciences & Research Tech. [500] IJESRT, Scientific Disposal system of Marble Slurry for Clean & Green Environment, [Kushwah, 3(10): October, 2014].

[2] S.K. Agarwal & Deepti Gulati, Utilization of industrial wastes and unprocessed micro-fillers for making cost effective mortars,,Construction and Building Materials, Volume 20, Issue 10, December 2006, Pages 999-1004.

DOI: 10.1016/j.conbuildmat.2005.06.009

[3] Vivek Sood, B M. Suman, Ashok Kumar Effect of admixtures on the physical properties of non – autoclaved light weight blocks using pond ash,, International Journal of Advancement in Research & Technology, Volume 3 Issue 8, August (2014).

[4] Vivek Sood, B.M. Suman & Ashok kumar, Effect of plasters/coatings on the thermo – physical behaviour of light weight pond ash blocks on non – autoclaving techniques,, Key Engineering Materials, Vol 678(2016), p.78 – 87, Trans Tech Publications, Switzerland.

DOI: 10.4028/www.scientific.net/kem.678.78

[5] G. Rudnai: Lightweight concretes, Budapest, Akademikaido, (1963).

[6] O.A, Kayali and M.N. Haque, A new generation of structural lightweight concrete,, ACI, SP121, 1997, pp.569-588.

[7] Methods of test for autoclaved cellular concrete products, IS 6441.

[8] IS:3346, Method for determination of thermal conductivity of thermal insulation materials (two slab, Guarded hot plate method).

[9] V.V. Verma and Suman Balmukund The effect of moisture on the thermal conductivity of aerated concrete,, Indian Concrete Journal 74(9):537-540, September (2000).