scholarly journals Effect of the Addition of Agribusiness and Industrial Wastes as a Partial Substitution of Portland Cement for the Carbonation of Mortars

Materials ◽  
2021 ◽  
Vol 14 (23) ◽  
pp. 7276
Author(s):  
Wilfrido Martinez-Molina ◽  
Hugo L. Chavez-Garcia ◽  
Tezozomoc Perez-Lopez ◽  
Elia M. Alonso-Guzman ◽  
Mauricio Arreola-Sanchez ◽  
...  
Keyword(s):  
Portland Cement ◽  
Research Work ◽  
Test Chamber ◽  
Bottom Ash ◽  
Concrete Structures ◽  
Industrial Wastes ◽  
Partial Substitution ◽  
Green Materials ◽  
Front Advance ◽  
Durability Of Concrete

The present research work shows the effect on the carbonation of Portland cement-based mortars (PC) with the addition of green materials, specifically residues from two groups: agricultural and industrial wastes, and minerals and fibres. These materials have the purpose of helping with the waste disposal, recycling, and improving the durability of concrete structures. The specimens used for the research were elaborated with CPC 30R RS, according to the Mexican standard NMX-C-414, which is equivalent to the international ASTM C150. The aggregates were taken from the rivers Lerma and Huajumbaro, in the State of Michoacan, Mexico, and the water/cement relation was 1:1 in weight. The carbonation analyses were performed with cylinder specimens in an accelerated carbonation test chamber with conditions of 65 +/− 5% of humidity and 25 +/− 2 °C temperature. The results showed that depending on the PC substitutions, the carbonation front advance of the specimens can increase or decrease. It is highlighted that the charcoal ashes, blast-furnace slags, and natural perlite helped to reduce the carbonation advance compared to the control samples, consequently, they contributed to the durability of concrete structures. Conversely, the sugarcane bagasse ash, brick manufacturing ash, bottom ash, coal, expanded perlite, metakaolin, and opuntia ficus-indica dehydrated fibres additions increased the velocity of carbonation front, helping with the sequestration of greenhouse gases, such as CO2, and reducing environmental pollution.

scholarly journals Performance Evaluation of Ordinary Portland Cement with GGBFS and Portland Slag Cement at Same GGBFS Replacement Level in Concrete

2018 ◽  
Vol 203 ◽  
pp. 06004
Author(s):  
Ramesh Babu Chokkalingam ◽  
Manikandan Rajakannu
Keyword(s):  
Portland Cement ◽  
Ordinary Portland Cement ◽  
Concrete Structures ◽  
Blended Cement ◽  
Mineral Admixtures ◽  
Slag Cement ◽  
Control Practice ◽  
Cement Manufacturing ◽  
Portland Slag Cement ◽  
Durability Of Concrete

Literature review indicates that the usage of mineral admixtures (Fly ash, Ground Granulated Blast Furnace Slag, Silica Fume and Rice Husk ash) significantly improves the durability of concrete structures. Though it is reported as best alternative materials for improving durability of concrete structures, it was not very well received in government projects in India till 1990. However, for the past two decades, the usage of mineral admixtures directly or in the form of blended cement in concrete have significantly increased. Major concern of using mineral admixtures which was persisting among majority of the Ordinary Portland Cement (OPC) users are (i) delayed setting and strength gain, affecting the rate of construction, (ii) inconsistent in quality of mineral admixtures, mostly happened in site blending (iii) no established results pertains to Indian condition. In India, mostly the usage of mineral admixtures in concrete are used as a replacement for OPC, specifically in Ready Mix Concrete and site batching plant. However, few literature have reported that usage of mineral admixtures in the form of blended cement which is made at cement manufacturing plant by either intergrinding or blending will exhibits better concrete properties due to consistent quality and better quality control practice followed. Hence, the authors have undertaken this study to investigate the performance of mineral admixtures (only GGBFS) as direct replacement materials and as blended cement in concrete. In order to understand in detail, both as replacement of OPC and in the form of PSC, was undertaken on various cement content in concrete, i.e., 300, 320, 340, 360, 380 kg/m3. Results of compressive strength at various age of curing indicates that usage of GGBFS in the form of Portland Slag Cement (PSC) shows better performance than as a replacement of OPC in concrete.

scholarly journals Calculation of the Percentage in High Sulfur Clinker

2010 ◽  
Vol 2010 ◽  
pp. 1-5 ◽  
Author(s):  
Sayed Horkoss ◽  
Roger Lteif ◽  
Toufic Rizk
Keyword(s):  
Portland Cement ◽  
Calculation Method ◽  
Working Condition ◽  
Research Work ◽  
Industrial Wastes ◽  
High Incorporation

The aim of this paper is to clarify the influence of the clinker on the amount of . The calculation of the cement phases percentages is based on the research work, Calculation of the Compounds in Portland Cement, published by Bogue in 1929 .The usage of high sulphur fuels, industrial wastes, and tires changes completely the working condition of Bogue because the assumed phase compositions may change. The results prove that increasing the amount of in the low alkali clinker decreases the percentages of due to the high incorporation of alumina in the clinker phases mainly and . The correlation is linear till the clinker reaches the 2%. Over that the influence of the clinker became undetectable. A new calculation method for the determination of the in the high sulphur and low alkali clinker was proposed.

scholarly journals Durability of Mortar Containing Coal Bottom Ash as a Partial Cementitious Resource

2020 ◽  
Vol 12 (19) ◽  
pp. 8089
Author(s):  
Nafissatou Savadogo ◽  
Adamah Messan ◽  
Kinda Hannawi ◽  
William Prince Agbodjan ◽  
François Tsobnang
Keyword(s):  
Diffusion Coefficient ◽  
Gas Permeability ◽  
Research Work ◽  
Bottom Ash ◽  
Chloride Ions ◽  
Chloride Diffusion ◽  
Partial Substitution ◽  
Capillary Absorption ◽  
Chloride Diffusion Coefficient ◽  
Coal Bottom Ash

This research work focuses on the study of the durability of composite cements based on coal bottom ash powder produced by SONICHAR in Niger. After a physicochemical and environmental characterization of the coal bottom ash powder, mortar test specimens were made. In these specimens, 10%, 15% and 20% of cement were replaced by identical mass percentages of coal bottom ash powder. Durability studies focused on the determination of the chloride ions apparent diffusion coefficient, the measurement of the depth of carbonation and the accelerated ammonium nitrate leaching. The influence of carbonation and leaching were examined using the following parameters: pore distribution, gas permeability, porosity accessible to water, capillary absorption and electrical resistivity. The results show that the incorporation of coal bottom ash powder into CEM I leads to an increase in the depth of carbonation. This increase is more significant when the substitution rate exceeds 10%. In the leaching test, the partial substitution of coal bottom ash powder in CEM I up to 20% does not significantly affect the durability parameters of the composites compared to the control mortar. Diffusion test shows that for mortars containing less than 15% substitution, there is no significant influence on the chloride diffusion coefficient. A slight decrease is observed for mortar containing 20% substitution.

scholarly journals Performance of Crumb Rubber Incorporated Ferro Geopolymer Panels under Flexure

2019 ◽  
Vol 8 (4S2) ◽  
pp. 127-133
Keyword(s):  
Fly Ash ◽  
Flexural Strength ◽  
Construction Material ◽  
Research Work ◽  
Base Material ◽  
Crumb Rubber ◽  
Absorption Capacity ◽  
Industrial Wastes ◽  
Partial Substitution ◽  
Metal Mesh

This research work presents the overview of geopolymer mortar application into the ferro cement panel with the incorporation of crumb rubber and Nano fly ash. The geopolymer mortar is prepared by using industrial wastes as a base material such as fly ash and ground granulated blast furnace slag (GGBFS) which generally helps to reduce the level of CO2 emission. Also, the recycled tyre crumb rubber is utilized as a sustainable innovative construction material which is used a partial substitution for sand upto 5% for enhancing the ductility without any strength degradation. These reduces land fill problems and ground water quality degradation problems. Crumb rubber has the ideal capacity to absorb energy from static and other kind of loads. The geopolymer binder preparation is done by utilizing material such as fly ash, GGBFS, alkaline liquid made of NaOH and Na2SiO3 , Nano fly ash. The Nano fly ash is used as an additive which helps in increasing the strength and durability of the element by its pore filling capability. This project aims to enhance the strength of fly ash based geopolymer mortar with the help of GGBFS incorporation. The molarity of alkaline activator, solution to binder ratio and silicate to hydroxide ratio is fixed as 12, 0.4 and 1.5 throughout the process. The mortar cubes and panels were heat cured under hot air oven at 80ᵒ C for 48 hours. The mechanical behavior of geopolymer mortar is assessed by compressive strength test water absorption test. The panel is made of high strength geopolymer mortar and expanded metal mesh with chicken mesh for obtaining higher energy absorption capacity with good deforming ability and less crack pronouncement. The investigation involves finding the initial crack load, ultimate failure load and residual flexural strength ratio. The results show that the tyre inclusion enhances the flexural strength of the ferro geopolymer panel by means of its ductile enhancing capacity

scholarly journals Environment friendly concrete block made from Portland cement and aggregate replacement materials

2021 ◽  
Vol 2145 (1) ◽  
pp. 012032
Author(s):  
B Kaewsai ◽  
P Torkittikul ◽  
A Chaipanich
Keyword(s):  
Compressive Strength ◽  
Fly Ash ◽  
Portland Cement ◽  
Research Work ◽  
Bottom Ash ◽  
Concrete Block ◽  
Total Solid ◽  
Solid Mass ◽  
Environment Friendly ◽  
Stone Dust

Abstract This research work investigated the properties of concrete block made from Portland cement and aggregate replacement materials. Portland cement (PC) was replaced by fly ash (FA) at 10%, 20%, 30% and sand was replaced by bottom ash (BA) at 10% by weight. Water was used at 7% by weight of total solid mass. Binder : Sand : Stone dust ratio of 1 : 5 : 6, 1 : 4 : 5 and 1 : 3.5 : 4.5 were used. Compressive strength were tested after curing in air for 28 days. The results showed that compressive strength of 1 : 5 : 6 ratio was lower than others. Concrete block replaced PC by fly ash had lower compressive strength when amount of fly ash increased. Concrete block had lower compressive strength when replaced sand by bottom ash. As a result, the mixes with FA as PC replacement and BA as sand replacement at the ratio of 1 : 5 : 6 did not meet the requirement of Thai industrial standard. However, concrete block with PC replaced by fly ash at 10%, 20% and sand replaced by bottom ash at 10% of 1 : 3.5 : 4.5 ratio was higher than 1 : 5 : 6 ratio and this ratio meet the requirement of Thai industrial standard.

Mechanism of Cement Paste with Different Particle Sizes of Bottom Ash as Partial Replacement in Portland Cement

2017 ◽  
Vol 68 (10) ◽  
pp. 2367-2372 ◽  
Author(s):  
Ng Hooi Jun ◽  
Mirabela Georgiana Minciuna ◽  
Mohd Mustafa Al Bakri Abdullah ◽  
Tan Soo Jin ◽  
Andrei Victor Sandu ◽  
...  
Keyword(s):  
Portland Cement ◽  
Construction Material ◽  
Bottom Ash ◽  
High Volume ◽  
Cement Composite ◽  
Pozzolanic Reaction ◽  
High Specific Surface Area ◽  
Partial Replacement ◽  
Natural Aggregates ◽  
Pozzolanic Properties

Manufacturing of Portland cement consists of high volume of natural aggregates which depleted rapidly in today construction field. New substitutable material such as bottom ash replace and target for comparable properties with hydraulic or pozzolanic properties as Portland cement. This study investigates the replacement of different sizes of bottom ash into Portland cement by reducing the content of Portland cement and examined the mechanism between bottom ash (BA) and Portland cement. A cement composite developed by 10% replacement with 1, 7, 14, and 28 days of curing and exhibited excellent mechanical strength on day 28 (34.23 MPa) with 63 mm BA. The porous structure of BA results in lower density as the fineness particles size contains high specific surface area and consume high quantity of water. The morphology, mineralogical, and ternary phase analysis showed that pozzolanic reaction of bottom ash does not alter but complements and integrates the cement hydration process which facilitate effectively the potential of bottom ash to act as construction material.

scholarly journals Evaluation of mortar properties obtained through partial substitution of Portland cement by ashes of oil palm empty fruit bunch

Cerâmica ◽  
2019 ◽  
Vol 65 (375) ◽  
pp. 359-365
Author(s):  
V. A. Coelho ◽  
C. C. Guimarães ◽  
G. G. Doutto ◽  
P. P. Pedra
Keyword(s):  
Portland Cement ◽  
Palm Oil ◽  
Edible Oils ◽  
Absorption Capacity ◽  
Partial Substitution ◽  
Empty Fruit Bunch ◽  
Empty Fruit Bunches ◽  
Production And Consumption ◽  
Potential Use ◽  
Proportional Reduction

Abstract Currently, palm oil is a leader in production and consumption among commercial edible oils, with a growing world production that exceeds 66 million tons per year. It is estimated that the generation of residues from the burning of palm oil empty fruit bunches as fuel in the boilers corresponds to 5% in mass of the total of oil extracted. This work evaluated the mechanical properties resulting from the use of the empty fruit bunch ashes as a partial substitute of Portland cement in mortars in different contents in 1:3 and 1:6 mixes. Mortars obtained with the use of ash presented greater deformability, implying greater workability. The results obtained pointed to potential use of the ash as filler in mortars without loss on compressive strength for contents up to 10% in the 1:3 mix and 5% in the 1:6 mix. It was observed an increase in the void index and the water absorption capacity, with a proportional reduction of the flexural strength.

Sign in / Sign up

Export Citation Format

Share Document