Incorporating of CKD in binder course cold asphalt emulsion mixtures

2021 ◽  
Author(s):  
Abbas Al-Hdabi ◽  
Mohammed Al-Jumaili ◽  
Huda Abdulzahra
Keyword(s):  
Mechanical Properties ◽  
Environmental Impact ◽  
Portland Cement ◽  
Manufacturing Industry ◽  
Energy Savings ◽  
Cement Kiln Dust ◽  
Cement Kiln ◽  
Asphalt Emulsion ◽  
Cement Manufacturing ◽  
Kiln Dust

AbstractCold asphalt emulsion mixtures are produced at ambient temperature and it have several advantages i.e., energy savings, safety and reducing CO2 emission during manufacturing and construction, reduction of adverse environmental impact. Cement kiln dust is a fine powdery substance with appearance similar to Portland cement that is generated as a by-product material of cement manufacturing industry. The aim of this research is addition of cement kiln dust instead of Portland cement as filler in asphalt emulsion mixtures. Cement kiln dust was added with 2, 4, 6, and 8% from total weight of aggregate to improve the mechanical properties and durability of this mixture. The results were very positive and encouraging, due to the improvement of the mechanical properties and durability of the mixtures.

scholarly journals The Effect of Using Cement Kiln Dust as a Partial Replacement of Cement on The Mechanical Properties of Concrete: Review and Modelling

2020 ◽  
pp. 99-116
Author(s):  
Nawdar Sabir Faraj ◽  
Mahdi Osman Hassun
Keyword(s):  
Mechanical Properties ◽  
Water Absorption ◽  
Partial Replacement ◽  
Cement Kiln Dust ◽  
Cement Kiln ◽  
Model Equations ◽  
Cement Manufacturing ◽  
Kiln Dust ◽  
Proper Disposal ◽  
Curing Age

There have been many efforts in reusing Cement Kiln Dust (CKD), a by-product of cement manufacturing, in various areas of civil works. These efforts have been made due to the necessity of the material for proper disposal, because of its very fine texture and the fact that if not handled properly, it will be harmful to human health and the environment. Numerous studies have been conducted to investigate the effects of incorporating CKD in concrete as an approach of reusing it. In the current study, the effect of using cement kiln dust on the mechanical properties of concrete as a partial replacement of cement was reviewed. The investigated mechanical properties were compressive strength for the curing ages of 7 and 28 days and tensile and flexural strengths, modulus of elasticity, and water absorption for the curing age of 28 days. It was concluded that replacing cement with CKD leads to detrimental effects on all mechanical properties of concrete. There were sufficient amount of data to establish correlations between the amount of cement replacement with CKD, and its effect on all mechanical properties of concrete except for water absorption. Regression analyses were performed and model equations with acceptably high R2s were prepared. The optimal CKD content regarding all mechanical properties was concluded to be 10% by the cement weight, at which 7 and 28 days compressive strengths, 28 days tensile and flexural strengths, and elastic modulus decreased by amounts of 11%, 12%, 8%, 9%, and 8% respectively.

scholarly journals Use of Factory-Waste Shingles and Cement Kiln Dust to Enhance the Performance of Soil Used in Road Works

2009 ◽  
Vol 2009 ◽  
pp. 1-9 ◽  
Author(s):  
Aly Ahmed ◽  
Medhat Shehata ◽  
Said Easa
Keyword(s):  
Tensile Strength ◽  
Compressive Strength ◽  
Unconfined Compressive Strength ◽  
Capillary Rise ◽  
Cement Kiln Dust ◽  
Cement Kiln ◽  
Fine Grained Soil ◽  
Stabilized Soil ◽  
Cement Manufacturing ◽  
Kiln Dust

An experimental work was conducted to study the use of factory-waste roof shingles to enhance the properties of fine-grained soil used in road works. Cement kiln dust (CKD), a cogenerated product of Portland cement manufacturing, was used as a stabilizing agent while the processed shingles were added to enhance the soil tensile strength. The effects of shingles on strength and stability were evaluated using the unconfined compressive strength, splitting tensile strength, and California Bearing Ratio (CBR) tests. The results showed that the use of CKD alone resulted in a considerable increase in the unconfined compressive strength but had a small effect on the tensile strength. The addition of shingles substantially improved the tensile strength of the stabilized soil. A significant reduction in the capillary rise and a slight decrease in the permeability were obtained as a result of shingle addition. An optimal shingle content of 10% is recommended to stabilize the soil.

scholarly journals Mechanical properties of Self-Consolidating Concrete incorporating Cement Kiln Dust

HBRC Journal ◽  
2015 ◽  
Vol 11 (1) ◽  
pp. 1-6 ◽  
Author(s):  
Mostafa Abd El-Mohsen ◽  
Ahmed M. Anwar ◽  
Ihab A. Adam
Keyword(s):  
Mechanical Properties ◽  
Cement Kiln Dust ◽  
Cement Kiln ◽  
Self Consolidating Concrete ◽  
Kiln Dust

Utilization of Portland cement with limestone powder and cement kiln dust for stabilization/solidification of oil-contaminated marl soil

2020 ◽  
Vol 28 (3) ◽  
pp. 3196-3216
Author(s):  
Yassir M. H. Mustafa ◽  
Omar S. Baghabra Al-Amoudi ◽  
Shamsad Ahmad ◽  
Mohammed Maslehuddin ◽  
Muhammad H. Al-Malack
Keyword(s):  
Portland Cement ◽  
Limestone Powder ◽  
Cement Kiln Dust ◽  
Cement Kiln ◽  
Kiln Dust

Stabilization/solidification of selenium-impacted soils using Portland cement and cement kiln dust

2009 ◽  
Vol 168 (2-3) ◽  
pp. 944-951 ◽  
Author(s):  
Deok Hyun Moon ◽  
Dennis G. Grubb ◽  
Trevor L. Reilly
Keyword(s):  
Portland Cement ◽  
Cement Kiln Dust ◽  
Cement Kiln ◽  
Kiln Dust

Characteristics of controlled low-strength materials incorporating cement kiln dust

2007 ◽  
Vol 34 (4) ◽  
pp. 485-495 ◽  
Author(s):  
M Lachemi ◽  
K M.A Hossain ◽  
M Shehata ◽  
W Thaha
Keyword(s):  
Strength Properties ◽  
Cement Industry ◽  
Cement Kiln Dust ◽  
Cement Kiln ◽  
Study Phase ◽  
Strength Material ◽  
Preliminary Study ◽  
Low Strength ◽  
Cement Manufacturing ◽  
Kiln Dust

This paper presents a study that focuses on evaluating the feasibility of incorporating cement kiln dust (CKD) in the development of controlled low-strength materials (CLSM). A preliminary study (phase I) was conducted (based on fresh and strength properties) to understand the behaviour of 12 selected CLSM mixtures where CKD and cement content varied from 4% to 45% and from 2% to 4% of total mass, respectively. Subsequently, four best CLSM mixes were selected for a detailed study (phase II), which investigated fresh and hardened properties, addressed durability issues, and made recommendations for suitable mix designs for field applications. The research suggests that CLSM with acceptable properties can be developed using moderate volumes of CKD (up to 15% by mass). A combination of 2% cement and 10% CKD or 15% CKD and no cement can provide a mix that satisfies the requirements of a CLSM. Sustainable development in the cement industry can be partly achieved by producing CKD-based CLSM, as it consumes cogenerated products from the cement manufacturing process.Key words: cement kiln dust, controlled low-strength material, mix design, fresh–mechanical properties, durability.

scholarly journals Physico-Mechanical Properties of Bricks Manufactured using Cement Kiln Dust

2020 ◽  
Vol 9 (3) ◽  
pp. 1804-1808
Keyword(s):  
Mechanical Properties ◽  
Compressive Strength ◽  
Waste Management ◽  
Industrial Waste ◽  
Cement Content ◽  
Cement Industry ◽  
Cement Clinker ◽  
Cement Kiln Dust ◽  
Cement Kiln ◽  
Kiln Dust

the actual increase in global industrial production and manufacturing, produces a continuous increase in amount of industrial waste and continues to emit an all-time high amount of air pollutants and greenhouse gas emissions. To fight and mitigate these phenomena, proper Waste Management became the pillar of most environmental strategies worldwide. By reduction of consumption, re-use of goods and recycling of products, waste management aims to preserve the resources and to protect the environment. The Cement industry is one of the most important industrial sectors for society development; however it also has significant negative environmental impacts due to its emissions and production of waste. Cement kiln dust (CKD) is an industrial waste or by product which results from cement manufacturing. CKD is fine grained, solid, highly alkaline particulate material chiefly composed of oxidized, anhydrous, micron-sized particles collected from electrostatic precipitators during the production of cement clinker. This research examines the effects of using large amounts of CKD to replace the cement content in the fabrication of solid cement bricks. It is triggered by the quadruple objectives of reducing the amount of cement consumption, disposing efficiently of its industrial waste and producing economic bricks with safe strength. The purpose of this paper is to assess the properties of solid cement bricks containing different amounts of CKD. Cement bricks produced using different amounts of CKD were tested to find their properties and final comparison has been made to identify the effect of using different CKD/Cement ratio on the performance of bricks compared to the reference specimen produced using cement only with no CKD. For the brick mixes, Ordinary Portland cement (OPC), with two cement content of 200kg/m3 and 250kg/m3 were used throughout this investigation. The physical properties; unit weight, water absorption and mechanical properties; compressive strength, flexural strength, of the produced bricks were determined. Results showed that partial replacement of OPC with CKD reduces the brick compressive strength by 18% to 23% for CKD/OPC ratio of 30% and by 36% for CKD/OPC ratio of 50% and in all cases the strength remains largely higher than the standard limit for load bearing bricks.

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