The Impact Molding and Test Results of High Fly Ash Block

2013 ◽  
Vol 357-360 ◽  
pp. 671-675
Author(s):  
Zhong Dong Liu ◽  
Wen Juan Zhao
Keyword(s):  
Fly Ash ◽  
Ash Content ◽  
Test Results ◽  
Vibration Compaction ◽  
The Impact

In this paper the molding mechanisms of mibration compaction for concrete bricks is explained. A lot of concrete bricks with different ash content were by a vibration compaction machines produced. The characteristics of the concrete bricks are investigated. The experiments showed that the starting hardness of the concrete bricks at the separation from molding tools is sufficient for brick stacking.

Physical Properties of Cement Mortar Containing Waste Ash

2015 ◽  
Vol 804 ◽  
pp. 129-132
Author(s):  
Sumrerng Rukzon ◽  
Prinya Chindaprasirt
Keyword(s):  
Compressive Strength ◽  
Fly Ash ◽  
Rice Husk ◽  
Rice Husk Ash ◽  
Cement Mortar ◽  
Ash Content ◽  
Water Requirement ◽  
Test Results ◽  
Pozzolanic Material ◽  
Materials Used

This research studies the potential for using waste ash from industrial and agricultural by-products as a pozzolanic material. Classified fly ash (FA) and ground rice husk ash (RA) were the materials used. Water requirement, compressive strength and porosity of cement mortar were investigated. Test results indicated that FA and RA (waste ash) have a high potential to be used as a good pozzolanic material. The water requirement of mortar mix decreases with the increases in fly ash content. For ground rice husk ash (RA), the water requirement of mortar mix increases with the increases in rice husk ash content. In addition, the reduction in porosity was associated with the increase in compressive strength.

Experimental Study of Splitting Tensile Strength of Polymer Resin Grout with Fly Ash

2015 ◽  
Vol 789-790 ◽  
pp. 38-42
Author(s):  
Nuria S. Mohammed ◽  
Ahmed Baharuddin Abd Rahman ◽  
Nur Hafizah A. Khalid ◽  
Musaab Ahmed
Keyword(s):  
Experimental Study ◽  
Tensile Strength ◽  
Fly Ash ◽  
High Strength ◽  
Ash Content ◽  
Splitting Tensile Strength ◽  
Test Results ◽  
River Sand ◽  
Polymer Resin ◽  
Bonding Material

Polymer resin grout can be used as bonding material for grouted sleeve connections This paper presents the experimental results on the effectiveness of fly ash as micro filler to the splitting tensile strength of polymer grout. In addition, the cement grout that is usually used as bonding material had been tested for comparison. Eleven proportions, of fly ash as the filler and polymer as binder, were tested with the binder to filler volume ratios of 1:1 and 1:1.5. The test results revealed that fly ash can be used as a micro-filler material to partially replace ordinary river sand in polymer resin grout. The splitting tensile strength of the polymer grout increases with the increase of fly ash contents. However, for higher level of fly ash of more than 22%, the splitting tensile strength deteriorated. For binder: filler ratio of 1:1, the optimum fly ash content of 22% gave the maximum splitting strength of 17.62 MPa, which can be considered acceptable for producing grout with high strength bonding material.

Effect of Fly Ash Content on Mechanical Properties of Cement-Fly Ash Stabilized Crushed Stones

2014 ◽  
Vol 548-549 ◽  
pp. 228-232 ◽  
Author(s):  
Xiao Chen ◽  
Ji Wei Liu ◽  
Ming Kai Zhou
Keyword(s):  
Mechanical Properties ◽  
Compressive Strength ◽  
Fly Ash ◽  
Crack Resistance ◽  
Unconfined Compressive Strength ◽  
Resilient Modulus ◽  
Ash Content ◽  
Mechanical Parameters ◽  
Cleavage Strength ◽  
The Impact

To improve the impact of fly ash on the properties of cement-fly ash stabilized crushed stone, and promote it popularize and apply better. This paper investigated the effect of fly ash content on unconfined compressive strength, cleavage strength and resilient modulus of cement-fly ash stabilized crushed stones, and those relationships between mechanical parameters. The results showed that with increasing of the fly ash content, the unconfined compressive strength and cleavage strength increased at first, then decreased, the resilient modulus decreased, and The brittleness index increased. We can conclude that the optimal fly ash content is between 10% and 15%, and increment of fly ash content can improve its crack-resistance.

scholarly journals On the use of an instrumented set-up to characterize the impact behaviour of an epoxy system containing varying fly ash content

2002 ◽  
Vol 21 (7) ◽  
pp. 763-771 ◽  
Author(s):  
Kishore ◽  
S.M. Kulkarni ◽  
S. Sharathchandra ◽  
D. Sunil
Keyword(s):  
Fly Ash ◽  
Ash Content ◽  
Epoxy System ◽  
Impact Behaviour ◽  
Set Up ◽  
The Impact

Research of the Admixture Influence Cement Stabilized Macadam Vibrating Compaction Effect

2012 ◽  
Vol 430-432 ◽  
pp. 1171-1175
Author(s):  
Yan Yan Liu ◽  
Jian Jun Li ◽  
Yan Fu
Keyword(s):  
Fly Ash ◽  
Reducing Agent ◽  
Dry Density ◽  
Test Results ◽  
Maximum Dry Density ◽  
Aggregate Gradation ◽  
Optimum Water Content ◽  
Vibration Compaction ◽  
Vibratory Compaction ◽  
Vibration Parameters

The cement stabilized macadam mixed with different admixture influence the vibration compaction effect , under certain aggregate gradation and vibration parameters, carry out vibratory compaction and compaction tests on cement stabilized macadam with incorporation of different admixture and cement dose of 4% , test results show that: when single mix water-reducing agent, adding 1.0% , cement stabilized macadam most easily compacted; when single mix fly ash, the mixing 30%, cement stabilized macadam most easily compacted; when compound mixed with fly ash and water-reducing agent, help reduce optimum water content, increasing the maximum dry density compared with single mix water-reducing agent or fly ash , and water-reducing agent dosage is 1.0%, fly ash dosage is 20% are the best.

Basic Mechanics Properties Test of Fly Ash Concrete

2012 ◽  
Vol 238 ◽  
pp. 138-141
Author(s):  
Wei Xie ◽  
Hai Juan Zhang ◽  
Shu Shan Li
Keyword(s):  
Tensile Strength ◽  
Compressive Strength ◽  
Fly Ash ◽  
Ash Content ◽  
Early Age ◽  
Test Results ◽  
Fly Ash Concrete ◽  
Influence Mechanism ◽  
Normal Reference ◽  
Test Study

By the test study of basic mechanics properties of concrete with different fly ash content, the influence of the content of fly ash on the compressive strength, flexural strength, splitting tensile strength and static compressive elastic modulus of concrete are analyzed with the explaining of the influence mechanism of fly ash. The test results show that, comparing with the normal reference concrete, the early age strength of fly ash concrete enhances slowly, while the late strength develops rapidly, even overpasses the strength of normal reference concrete.

scholarly journals ALFA: Fly Ash - Aluminium Metal Matrix Composites for Light Weight Material

2019 ◽  
Vol 8 (3) ◽  
pp. 8897-8898
Keyword(s):  
Fly Ash ◽  
Impact Energy ◽  
Aluminum Matrix ◽  
Stir Casting ◽  
Ash Content ◽  
Phase Identification ◽  
Light Weight ◽  
Matrix Composites ◽  
The Impact ◽  
Aluminium Metal

In the present work, properties such as wear rate, hardness, impact energy and microstructure of the Aluminum-fly ash composite synthesized by stir casting were investigated by varying the fly ash in the range of 5 and 15 by weight %. The phase identification and structural characterization was carried out on ALFA composites using SEM and EDAX tests and it was found that there was a uniform distribution of fly ash particles in the aluminum matrix phase. The hardness and the wear resistance increased and the impact energy decreased as the fly ash content in the ALFA composite was increased and it can be used as a light weight material for many engineering and non-engineering applications

scholarly journals Compression Characteristics and Microscopic Mechanism of Coastal Soil Modified with Cement and Fly Ash

Materials ◽  
2019 ◽  
Vol 12 (19) ◽  
pp. 3182 ◽  
Author(s):  
Na Li ◽  
Qianying Zhu ◽  
Wei Wang ◽  
Fei Song ◽  
Dongliang An ◽  
...  
Keyword(s):  
Fly Ash ◽  
Ash Content ◽  
Rate Of Change ◽  
Pressure Curve ◽  
Test Results ◽  
Microscopic Mechanism ◽  
Consolidation Test ◽  
Cement Soil ◽  
Compression Characteristics ◽  
Compression Resistance

It is of great significance to study the consolidation characteristics of modified coastal cement-soil. A one-dimensional consolidation test and microscopic test were carried out. In the tests, the cement content was 20%, fly ash content was 0%, 5%, 10%, 20%, and 30%, and the water content was 80%. The consolidation test results showed that: (1) Compared with coastal cement soil, the deformation of coastal cement soil modified with a 20% fly ash content was reduced from 4.31 to 2.70 mm, and the vertical compression deformation was reduced by 1.61 mm. (2) During consolidation and compression, the e–p curve (pore ratio-pressure curve) of fly ash-modified coastal cement soil was slower than that of coastal cement soil and the rate of change of pore ratio. (3) The compression coefficient of fly ash-modified coastal cement soil was reduced from 0.780 to 0.598 MPa-1 compared with that of coastal cement soil. The microscopic test results indicate that after adding the proper amount of fly ash, a skeleton was formed between the microscopic particles of the sample, which improved its resistance to compression and deformation. The results of this study indicate that it is feasible to modify coastal cement soil with an appropriate amount of fly ash to improve its compression resistance.

scholarly journals A Study of the Strength Performance of Peat Soil: A Modified Cement-Based Stabilization Agent Using Fly Ash and Polypropylene Fiber

Polymers ◽  
2021 ◽  
Vol 13 (23) ◽  
pp. 4059
Author(s):  
Mohammed K. H. Radwan ◽  
Foo Wei Lee ◽  
Yoke Bee Woon ◽  
Ming Kun Yew ◽  
Kim Hung Mo ◽  
...  
Keyword(s):  
Fly Ash ◽  
Soil Stabilization ◽  
Cement Content ◽  
Peat Soil ◽  
Polypropylene Fiber ◽  
Soil Treatment ◽  
Engineering Properties ◽  
Test Results ◽  
Stabilizing Agent ◽  
The Impact

The use of cement as a soil stabilization agent is one of the common solutions to enhancing the engineering properties of soil. However, the impact and cost of using cement have raised environmental concerns, generating much interest in the search for alternative materials to reduce the use of cement as a stabilizing agent in soil treatment. This study looked into limiting cement content in peat soil stabilization by using fly ash waste and polypropylene fiber (PPF). It focused on soil mechanical mediation for stabilization of peat with fly ash cement and PPF cement by comparing the mechanical properties, using unconfined compressive strength (UCS) and California bearing ratio (CBR) tests. The control (untreated) peat specimen and specimens with either fly ash (10%, 20% and 30%) and PPF (0.1%, 0.15% and 0.2%) were studied. Test results showed that 30% of fly ash and cement content displays the highest UCS and CBR values and gives the most reliable compressibility properties. On the other hand, UCS and CBR test results indicate optimum values of PPF–cement stabilizing agent content in the specimen of 0.15% PPF and 30% cement. Selected specimens were analyzed using scanning electron microscopy (SEM), and PPF threads were found to be well surrounded by cement-stabilized peat matrices. It was also observed that the specimen with 30% fly ash generated more hydration products when compared to the specimen with 100% cement content. It is concluded that the use of fly ash cement and PPF cement as stabilizing agents to limit the cement usage in peat soil treatment is potentially viable.

Influence of Fly Ash Addition on Behavior of Soft Clayey Soil

2020 ◽  
Vol 38 (5A) ◽  
pp. 698-706
Author(s):  
Hussein H. Karim ◽  
Zeena W. Samueel ◽  
Adel H. Jassem
Keyword(s):  
Fly Ash ◽  
Specific Gravity ◽  
Clayey Soil ◽  
Soft Soil ◽  
Cost Effective ◽  
Liquid Limit ◽  
Ash Content ◽  
Unit Weight ◽  
Cost Effective Method ◽  
The Impact

This paper investigates the impact of the fly Ash addition on the Geotechnical properties of soft soil as well as chooses the optimum percentage added of fly ash. To understand the behavior of fly ash mixed with soil, a number of laboratory experiments testing conducted on clayey soil-fly ash mixture in several percentages (5,10,15,20,25, and 30%) as Atterberg test, Specific gravity test, compaction test, California Bearing Ratio (C.B.R) Test, Unconfined Compressive Strength (UCS) Test, Consolidation Test. Test results indicate rising in plastic limit and liquid limit as fly ash adding.  Specific gravity decreased essentially by adding fly ash. Whereas there was falling on the Dry unit weight value with the contract to the decreasing in the water content.  The CBR and UCS values were increased with increasing fly ash content. 20% was the optimum fly Ash content. This study also benefits the effective use of fly ash and thus a cost-effective method for improving the soil properties.

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