Application of Corn Stalk Ash as Partial Replacement for Cement in the Production of Interlocking Paving Stones

2017 ◽  
Vol 30 ◽  
pp. 85-93 ◽  
Author(s):  
Akeem Ayinde Raheem ◽  
Solomon I. Adedokun ◽  
E.A. Adeyinka ◽  
B.V. Adewole
Keyword(s):  
Construction Industry ◽  
Ash Content ◽  
Partial Replacement ◽  
Corn Stalk ◽  
Curing Time ◽  
Test Results ◽  
Replacement Level ◽  
Pozzolanic Material ◽  
Curing Period ◽  
Increased Strength

In an attempt to reuse and convert agro wastes into useful materials for the construction industry, this research considered the application of corn stalk ash (CSA) as partial replacement for ordinary Portland cement (OPC) in the production of interlocking paving stones. The study investigated the oxide composition of CSA to ascertain its suitability as a pozzolanic material. Some properties of paving stones with CSA as a replacement for OPC were examined. The results showed that CSA is a good pozzolana having satisfied the required standards. The compressive strength of the specimens with replacement levels ranging from 5 to 25% cured for periods of 3–56 days was lower at early curing time but improved significantly at later age. 10% replacement level showed increased strength compared to 0% CSA at 28 days curing period. Density decreased with increasing ash content, water absorption rate increased with increased CSA contents, while abrasion resistance increased with increasing amount of CSA substitutions. The test results revealed that CSA paving stones can attain higher strength than the conventional ones at longer curing periods, due to its pozzolanic reactions.

scholarly journals Application of Corn Husk Ash as Partial Replacement for Cement in the Production of Interlocking Paving Stones

2018 ◽  
Vol 1 (March 2018) ◽  
pp. 14-20
Author(s):  
A.A Raheem ◽  
S.I Adedokun ◽  
Q.A Uthman ◽  
A.O Adeyemi ◽  
O.M Oyeniyi
Keyword(s):  
Compressive Strength ◽  
Construction Industry ◽  
Ordinary Portland Cement ◽  
Partial Replacement ◽  
Test Results ◽  
Replacement Level ◽  
Corn Husk ◽  
Pozzolanic Material ◽  
Increased Strength ◽  
Curing Age

As a way of converting agro-wastes into useful materials for the construction industry, this research considered the application of corn husk ash (CHA) as partial replacement for ordinary Portland cement (OPC) in the production of interlocking paving stones. The study investigated the oxide composition of CHA to ascertain its suitability as a pozzolanic material. Some properties of paving stones with CHA as a replacement for OPC were evaluated. The results showed that CHA is a good pozzolana having satisfied the required standards. The compressive strength of the specimens, with replacement levels ranging from 5 to 25% cured for periods of 3-56 days, was lower at early curing age but improved significantly at later age. Five percent (5%) replacement level showed increased strength compared to 0% CHA regardless of curing age. Density decreased with increasing CHA content, water absorption increased with CHA content, while abrasion resistance decreased with CHA substitution. The test results revealed that CHA paving stones at 5% replacement can attain higher strength than the conventional ones at longer curing periods due to its pozzolanic characteristics.

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.

Soil-Lime Blocks Using Construction Residues - Durability Study

2012 ◽  
Vol 727-728 ◽  
pp. 1422-1427
Author(s):  
Suélen Silva Figueiredo ◽  
Cibelle Guimarães Silva ◽  
Izabelle Marie Trindade Bezerra ◽  
Suellen Lisboa Dias ◽  
Gelmires Araújo Neves ◽  
...  
Keyword(s):  
Construction Industry ◽  
Raw Materials ◽  
Raw Material ◽  
Partial Replacement ◽  
Distribution Analysis ◽  
X Ray Diffraction ◽  
New Techniques ◽  
X Ray ◽  
Curing Period ◽  
Alternative Materials

The construction industry in addition to being considered one of the biggest natural resources consumers is still responsible for generating large quantities of residues. The impacts caused by these residues have motivated research aimed at developing new techniques for reuse and recycling this material by using as raw material to make alternative materials. The introduction of demolition residues (DR) in soil-lime bricks replacing part of the pozzolan becomes possible due to the cementing properties that these residues may present when finely grounded. This study aims to evaluate the durability of soil-lime blocks embedded with demolition residues. For this study the raw materials were characterized by particle size distribution analysis, X-ray diffraction and chemical analysis. Then test specimens were prepared using mixes in a 1:10 ratio of lime:soil and embedded with residue in partial replacement of lime, in the proportions of 25%, 50% and 75% with curing period of 90 days. Later, the test specimens were evaluated for durability. The results showed that soil-lime bricks embedded with contents above 50% of residues had their durability affected.

scholarly journals Effects of Curing Time on the Performance of Volcanic Scoria-Based Binder Concretes

2017 ◽  
Vol 63 (1) ◽  
pp. 133-150
Author(s):  
A. M. Al-Swaidani
Keyword(s):  
Compressive Strength ◽  
Corrosion Resistance ◽  
Water Permeability ◽  
Performance Indicators ◽  
Plain Concrete ◽  
Curing Time ◽  
Test Results ◽  
Reinforcement Corrosion ◽  
Replacement Level ◽  
Rebar Corrosion

Abstract The objective of the presented paper is to investigate the performance of concrete containing volcanic scoria as cement replacement after 7, 28, 90, and 180 days curing. Five performance indicators have been studied. Compressive strength, water permeability, porosity, chloride penetrability, and reinforcement corrosion resistance have all been evaluated. Concrete specimens were produced with replacement levels ranging from 10 to 35%. Test results revealed that curing time had a large influence on all the examined performance indicators of scoria-based concrete. Water permeability, porosity, and chloride penetrability of scoria-based concrete mixes were much lower than that of plain concrete. Concretes produced with scoria-based binders also decelerated rebar corrosion, particularly after longer curing times. Furthermore, an estimation equation has been developed by the authors to predict the studied performance indicators, focusing on the curing time and the replacement level of volcanic scoria. SEM/EDX analysis has been reported as well.

scholarly journals Strengthning Properties of Concrete with Partial Replacement of Sand by GBFS

2020 ◽  
Vol 9 (4) ◽  
pp. 1746-1751 ◽  
Keyword(s):  
Absolute Number ◽  
Partial Replacement ◽  
Replacement Level ◽  
Split Tensile Strength ◽  
Conventional Concrete ◽  
Quality Properties ◽  
Granulated Blast Furnace Slag ◽  
Curing Period ◽  
Structural Grade ◽  
Furnace Slag

It is an evident fact that, the rate of depletion of natural resources like sand is moving to higher grounds every year. In order to curb the later effects, an investigation is led by replacing a portion of sand by GBFS in the entire mixture. GBFS (Granulated Blast Furnace Slag) is a waste byproduct obtained from mining and other industries, whose disposal has led to various Environmental Nuisances. In this investigation the trial mixes by replacing sand by GBFS for 0%, 25%, 50%, 75% & 100% are used. The aim of the investigation is to study the strengthening properties of concrete and various attributes involved in it. In our investigation the absolute number of 30 cubes, prisms and cylinders are prepared for deciding the compressive, flexural and split strengths separately. At 7and 28 days relieving period. In view of the test outcome it was seen that the quality properties of solid increments with expanding the level of GBFS sand The optimum replacement proportion is obtained between 50-75%. The compressive strength, flexural strength and split tensile strength is increased about 3.43%, 17.11% and 10.58% respectively when compared to conventional concrete at 28 days curing period. Even at 100% replacement level of GBFS sand also we will get a good structural grade concrete. Hence utilizing GBFS sand in the concrete is economical as well as environmental friendly option for producing a greener concrete.

scholarly journals EVALUATION OF WATER HYACINTH STEM ASH AS POZZOLANIC MATERIAL FOR USE IN BLENDED CEMENT

2016 ◽  
Vol 7 (1) ◽  
pp. 1-8 ◽  
Author(s):  
Neelu Das ◽  
Shashikant Singh
Keyword(s):  
Compressive Strength ◽  
Portland Cement ◽  
Water Absorption ◽  
Water Hyacinth ◽  
Setting Time ◽  
Blended Cement ◽  
Partial Replacement ◽  
Test Results ◽  
Pozzolanic Material ◽  
Time Specific

 In this paper, the potential use of water hyacinth stem ash (WHA) in the partial replacement of cement is studied. WHA was used as a replacement for ordinary Portland cement at 10, 15, 20 and 25 wt. %. To evaluate the pozzolanic activity of WHA, the properties investigated were chemical composition, particle size, soundness, setting time, specific gravity, presence of crystalline matter, compressive strength, water absorption and sorption. Mortar cubes were tested for compressive strength up to the age of 56 days, whereas water absorption and sorption tests are carried out at the age of 28 days. Test results reveal that mortar cubes with 10% WHA substitution for Portland cement produced comparative compressive strength values to control mortar. It was also observed that the use of WHA in Portland cement has reduced water absorption characteristics.

scholarly journals The Effect of Wood Ash as a Partial Cement Replacement Material for Making Wood-Cement Panels

Materials ◽  
2019 ◽  
Vol 12 (17) ◽  
pp. 2766 ◽  
Author(s):  
Viet-Anh Vu ◽  
Alain Cloutier ◽  
Benoit Bissonnette ◽  
Pierre Blanchet ◽  
Josée Duchesne
Keyword(s):  
Loss Rate ◽  
Bending Strength ◽  
Wood Ash ◽  
Ash Content ◽  
Partial Replacement ◽  
Test Results ◽  
Heat Loss Rate ◽  
Wood Particles ◽  
Partial Cement Replacement ◽  
Building Walls

The aim of this study was to consider the use of biomass wood ash as a partial replacement for cement material in wood-cement particleboards. Wood-cement-ash particleboards (WCAP) were made with 10%, 20%, 30%, 40%, and 50% of wood ash as a partial replacement for cement with wood particles and tested for bending strength, stiffness, water absorption, and thermal properties. Test results indicate that water demand increases as the ash content increases, and the mechanical properties decrease slightly with an increase of the ash content until 30% of replacement. On the other hand, the heat capacity increases with the wood ash content. The WCAP can contribute to reducing the heat loss rate of building walls given their relatively low thermal conductivity compared to gypsum boards. The replacement of cement to the extent of approximately 30% by weight was found to give the optimum results.

scholarly journals Compressive Strength of Mortar with Partial Replacement of Cement by Fly Ash and GGBFS.

2021 ◽  
Vol 14 (4) ◽  
pp. 146-155
Author(s):  
Safie Safie Mahdi Oleiwi
Keyword(s):  
Compressive Strength ◽  
Fly Ash ◽  
Construction Industry ◽  
Optimal Level ◽  
Partial Substitution ◽  
Partial Replacement ◽  
Curing Time ◽  
Granulated Blast Furnace Slag ◽  
Strength Tests ◽  
Furnace Slag

The compressive strength characteristics of mortar containing Ground Granulated Blast Furnace Slag (GGBFS) and Fly Ash (FA) in mortar by partial substitution of cement are investigated in this work. The increased demand for cement in the construction industry is a concern for environmental degradation; in this case, waste materials such as GGBFS and FA are used to replace cement. The optimal level of GGBFS and FA was determined using a percentage range of 0% to 40% for different curing days. Compressive strength tests were performed on the replaced mortar. For all mixes, the binder-to-water ratio was kept at 0.4. The compressive strength tests were conducted for 7, 28 and 90 days of curing on a Mortar. The result obtained that as the curing time increased the compressive strength of mortar containing GGBFS and FA increased. In comparison to M1 (cement only), the compressive strength improved by 13.15 percent and 15.5 percent at M3 (20%FA) and M8 (30%GGBFS), respectively. The results showed that adding GGBFS and FA to mortar improve compressive strength, which is improves the mechanical properties of the mortar.

scholarly journals Use of Rice Husk-Bark Ash in Producing Self-Compacting Concrete

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Sumrerng Rukzon ◽  
Prinya Chindaprasirt
Keyword(s):  
Compressive Strength ◽  
Portland Cement ◽  
Rice Husk ◽  
Chloride Penetration ◽  
Partial Replacement ◽  
Test Results ◽  
Replacement Level ◽  
Self Compacting Concrete ◽  
Rice Husk Bark Ash ◽  
Better Than

This paper presents the use of blend of Portland cement with rice husk-bark ash in producing self-compacting concrete (SCC). CT was partially replaced with ground rice husk-bark ash (GRHBA) at the dosage levels of 0%–40% by weight of binder. Compressive strength, porosity, chloride penetration, and corrosion of SCC were determined. Test results reveal that the resistance to chloride penetration of concrete improves substantially with partial replacement of CT with a blend of GRHBA and the improvement increases with an increase in the replacement level. The corrosion resistances of SCC were better than the CT concrete. In addition, test results indicated that the reduction in porosity was associated with the increase in compressive strength. The porosity is a significant factor as it affects directly the durability of the SCC. This work is suggested that the GHRBA is effective for producing SCC with 30% of GHRBA replacement level.

scholarly journals EFFECT OF PARTIAL REPLACEMENT OF CEMENT WITH EGGSHELL ASH (ESA) ADMIXED WITH PLASTIMENT BV-40 IN CONCRETE

2020 ◽  
Vol 4 (2) ◽  
pp. 284-289
Author(s):  
Dr.Muhammad Magana Aliyu Aliyu ◽  
Nuruddeen Muhammad Musa
Keyword(s):  
Tensile Strength ◽  
Compressive Strength ◽  
Strength Test ◽  
Ash Content ◽  
Splitting Tensile Strength ◽  
Partial Replacement ◽  
Test Results ◽  
Tensile Strength Test ◽  
Compressive Strength Test ◽  
Partial Cement Replacement

The use of eggshells ash for partial cement replacement in concrete has been well established in earlier studies. The effect of such partial replacement of cement with an eggshell ash and Plastiment BV-40 was investigated in this. Tests including slump test, compressive strength test, splitting tensile strength test and concrete density test were carried out on concrete in which cement was partially replaced with 0%, 5%, 10%, 15%, 20%, and 25% eggshell ash and presented. The test results indicate that eggshell ash decreases the workability of concrete. Also, for the compressive strength at 5% content, after which there is  decrease in the compressive strength with increase in the ash content. Furthermore, eggshell ash is found to increase the concrete splitting tensile strength. It was concluded that eggshell ash has the potential of being utilized in concrete as partial replacement of cement.

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