scholarly journals Properties of Fire Resistant Finishing Mortar Using Fly Ash and Glass Forming Light Weight Aggregate

2015 ◽  
Vol 3 (4) ◽  
pp. 374-381
Author(s):  
Hun Song
Keyword(s):  
Fly Ash ◽  
Light Weight ◽  
Glass Forming ◽  
Light Weight Aggregate

Manufacture of Light-weight Aggregate Utilizing Coal Fly Ash.

1991 ◽  
Vol 38 (4) ◽  
pp. 185-190
Author(s):  
Shigeki SATO ◽  
Akira WAKABAYASHI ◽  
Jiro TERUKINA
Keyword(s):  
Fly Ash ◽  
Coal Fly Ash ◽  
Light Weight ◽  
Light Weight Aggregate

scholarly journals Influence of Atmosphere on the Bloating of Artificial Light Weight Aggregate from Fly Ash and Pulp Waste Liquor

1970 ◽  
Vol 78 (893) ◽  
pp. 20-27
Author(s):  
Kenjiro KODAMA ◽  
Takeshi OTAKE ◽  
Kiyoshi OSADA ◽  
Kinjiro FUJII
Keyword(s):  
Fly Ash ◽  
Artificial Light ◽  
Light Weight ◽  
Waste Liquor ◽  
Light Weight Aggregate

scholarly journals Mechanical Characteristics of Lightweight Concrete Enhanced by Fly-Ash and Steel Fiber

2019 ◽  
Vol 26 (4) ◽  
pp. 16-25
Author(s):  
Arkan Ahmed ◽  
Bayer Al-Sulayvany ◽  
Muyasser Jomma’h
Keyword(s):  
Mechanical Properties ◽  
Compressive Strength ◽  
Fly Ash ◽  
Steel Fiber ◽  
Lightweight Concrete ◽  
Mineral Admixtures ◽  
Light Weight ◽  
Is Success ◽  
Aggregate Concrete ◽  
Light Weight Aggregate

This research deals with production of light weight aggregate concrete by using clayey stone aggregate, normal material (cement , sand) and some of mineral admixtures (fly ash and steel fiber ). Many trial mix were doing some of these by weighing ratio and others by volumetric ratio . We get light weight aggregate concrete (LWAC) with 24.92 N/ mm2 compressive strength and we improved mechanical properties by adding same percentage of fly ash and steel fiber (0.5 ,1 ,1.5) % of each other as a percentage weighing ratio of cement content . compressive strength increased with (7.8 , 5.2 , 2.9) % , splitting tensile strength increased with (20 ,16.71, 12)% and flexural strength increased with (24.5 , 17.9 , 8) % when adding (0.5 ,1 ,1.5) % of each steel fiber and fly ash respectively. The practical results of the current study indicates that the using clayey stone to produce (LWAC) is success and we can improved mechanical properties of this (LWAC) was produced in this research by adding fly ash and steel fiber with previously percentage.

Effect of Mineral Additives on Internal Relative Humidity and Dry Shrinkage of Light Weight Aggregate Concrete

2013 ◽  
Vol 857 ◽  
pp. 51-55
Author(s):  
Shu Hui Dong ◽  
Yong Ge ◽  
De Cheng Feng ◽  
Feng Ping Wang ◽  
Bao Sheng Zhang
Keyword(s):  
Fly Ash ◽  
Relative Humidity ◽  
Shrinkage Rate ◽  
Light Weight ◽  
Aggregate Concrete ◽  
Fly Ash Concrete ◽  
Internal Relative Humidity ◽  
Dry Shrinkage ◽  
Mineral Additives ◽  
Light Weight Aggregate

Effect of fly ash and slag on internal relative humidity (IRH) and dry shrinkage of light weight aggregate concrete (LWC) are studied in this paper. As indicated in this test, mixed with mineral additives can reduce dry shrinkage of concrete. The more volume of fly ash and slag ash, the lower decrease speed of IRH is, which contribute to the decreases of dry shrinkage rate too. At the same curing-age and dosage, the relative humidity inside the fly ash concrete is higher than the slag one. As consequence, the rate of dry shrinkage of fly ash concrete is lower than slag concrete. Also, there is a significant linear correlation between the lowered values of IRH and dry shrinkage rate.

scholarly journals A review on the effects of artificial light weight aggregate in concrete

2021 ◽  
Vol 10 (1) ◽  
Author(s):  
Raj K Rhishi ◽  
R. Vasudev
Keyword(s):  
Fly Ash ◽  
Lightweight Aggregate ◽  
Artificial Light ◽  
Light Weight ◽  
Complete Replacement ◽  
Coarse Aggregates ◽  
The Impact ◽  
Cold Bonding ◽  
Light Weight Aggregate ◽  
By Products

The disposal problem of industrial by-products like fly ash, heavy metal sludge, sewage sludge etc. are increasing day by day. To use by-products in large volume the applications like embankment fill or aggregate replacement material should be considered for sustainable development. This study is focused on properties of artificial light weight aggregate on concrete and the effect of cold bonded light weight aggregate on concrete through partial and complete replacement of coarse aggregates. Artificial Lightweight aggregate can be produced by nodulizing the by-product for example fly ash in a pelletizer with a proportionate quantity of water, cement and further hardened by cold bonding or sintering. Due to the impact of earth quake forces all over the world, the need for light weight structural design is increasing presently, as it reduces mass of the structure. The concrete produced is light weight in nature and has added the benefit of reducing overall cost, especially in transportation and placing etc. it has its own advantages like reduced dead load, and thus economic structures, high sound absorption and good fire resistance. Keywords—Artificial light weight aggregate, cold bonding, Fly ash, Fly ash aggregate, Pelletization, and Sintering.

scholarly journals Reinforcing Mechanisms of Coir Fibers in Light-Weight Aggregate Concrete

Materials ◽  
2021 ◽  
Vol 14 (3) ◽  
pp. 699
Author(s):  
Xiaoxiao Zhang ◽  
Leo Pel ◽  
Florent Gauvin ◽  
David Smeulders
Keyword(s):  
Cement Hydration ◽  
Natural Fibers ◽  
Autogenous Shrinkage ◽  
Drying Shrinkage ◽  
Hydration Reaction ◽  
Light Weight ◽  
Limited Information ◽  
Aggregate Concrete ◽  
Coir Fibers ◽  
Light Weight Aggregate

Due to the requirement for developing more sustainable constructions, natural fibers from agricultural wastes, such as coir fibers, have been increasingly used as an alternative in concrete composites. However, the influence of coir fibers on the hydration and shrinkage of cement-based materials is not clear. In addition, limited information about the reinforcing mechanisms of coir fibers in concrete can be found. The goal of this research is to investigate the effects of coir fibers on the hydration reaction, microstructure, shrinkages, and mechanical properties of cement-based light-weight aggregate concrete (LWAC). Treatments on coir fibers, namely Ca(OH)2 and nano-silica impregnation, are applied to further improve LWAC. Results show that leachates from fibers acting as a delayed accelerator promote cement hydration, and entrained water by fibers facilitates cement hydration during the whole process. The drying shrinkage of LWAC is increased by adding fibers, while the autogenous shrinkage decreases. The strength and toughness of LWAC are enhanced with fibers. Finally, three reinforcement mechanisms of coir fibers in cement composites are discussed.

scholarly journals Mechanical Properties of Light Weight Aggregate Concrete Using Pumice as a Coarse Aggregate

2021 ◽  
Vol 1090 (1) ◽  
pp. 012106
Author(s):  
Hayder Kadhem Adai Al-Farttoosi ◽  
Oday A. Abdulrazzaq ◽  
Haleem K. Hussain
Keyword(s):  
Mechanical Properties ◽  
Coarse Aggregate ◽  
Light Weight ◽  
Aggregate Concrete ◽  
Light Weight Aggregate

Quality assessment of light weight aggregate

1994 ◽  
Vol 24 (8) ◽  
pp. 1423-1427 ◽  
Author(s):  
A. Ulrik Nilsen ◽  
Paulo J.M. Monteiro ◽  
Odd E. Gjørv
Keyword(s):  
Quality Assessment ◽  
Light Weight ◽  
Light Weight Aggregate
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