The influence of microstructure of silica enhanced cement on the mechanical performance of cement is difficult to describe In this study we used the scanning electron microscope and image processing method to investigate the relationship between the complicity of cement microstructure and compressive strength under various temperatures and curing times
Get PriceIn this study cement is being replaced with palm oil fuel ash by 5% % 10% % 15% % and the strength tests like compressive strength test tensile strength test flexural strength test are performed and are compared with the results of conventional concrete of grade M25 for 3 7 and 28 days
Get PriceThe use of waste material as aggregates in civil engineering applications is beneficial and is becoming increasingly desirable because it reduces the environmental impact and economic cost of quarrying operations processing and transportation Thus this study focused on establishing the effect of crushed tile and oil palm fibre additive on the compressive and flexural strength of concrete
Get Price[1] Neville A 2024 Properties of concrete New York John Wiley publishers Google Scholar [2] Ede A N Bamigboye G O Olofinnade O M and Shittu K 2024 Influence of Portland cement brands and aggregates sizes on the compressive strength of normal concrete Mat Sc For 866 78 82 Google Scholar [3] Awoyera P O Olofinnade O M Busari A A Akinwumi I I Oyefesobi M and Ikemefuna M 2024
Get PriceThe increase in residual compressive strength of POFA concrete between 100 °C and 500 °C via air cooling could be related to a number of factors existence of change in thermal strain fineness of POFA used in the mix and the hydration of unhydrated cement
Get Priceusing natural soil in concrete means the compressive strength go down for that we are adding the natural admixtures such as cactus milk and waste blood to improve or attain the normal strength of concrete Keywords— Compressive strength natural soil blood Cactus milk cooking oil engine oil non bio degradable ash I INTRODUCTION
Get PriceThe salt content in water adversely affect the strength of the concrete The major salts that can be present in water are salts of manganese tin lead copper and zinc The presence of zinc chloride in water results in the retarding of concrete strength gain But for more than 8% mineral oil the strength is reduced The vegetable oil in
Get PriceThe published research on Oil Palm Shell Concrete OPSC has shown that it could be produced within the density range of 1690 2024 kg/m 3 and with a compressive strength of up to 45 MPa 6 9 Moreover the long term strength of the OPSC was investigated by Mannan and Ganapathy 10 who reported that there was no deterioration in the
Get PriceThis paper aims to investigate the effect of fine recycled concrete powder FRCP on the strength of self compacting concrete SCC For this purpose a numerical artificial neural network ANN model was developed for strength prediction of SCC incorporating FRCP At first 240 experimental data sets were selected from the literature to develop the model Approximately 60% of the database was
Get PriceFrom the results the compressive strength of the oil palm shell lightweight foamed concrete with % of macro polypropylene fibre OPSLWFC/ had showed the highest compressive strength and
Get PriceAbstractThe serviceability and ultimate strength of reinforc ed concrete structures are greatly influenced by the strength of the bond mechanism between steel and concrete The bond ensures that the structure remains in equilibrium under any given load Oil as a formwork releasing agent on construction sites affects this bond
Get PriceTimber yards and Wharves Creosote Diesel Fuel Oil Brownfield sites often require concrete to be placed in contact with soils contaminated with hydrocarbons Hydrocarbons can adversely affect the hydration of fresh concrete if intermixed they retard concrete strength gain
Get PriceMay 31 2022The finer MK than cement acts as a filler to reduce the pores in the concrete and the aluminum Oxide content in the MK influences the hydration reaction by increasing the initial strength of the M5 and P15M5 concrete R C Omar M A Malek N M Noor and S Thiruselvam Compressive strength of palm oil fuel ash concrete in
Get PriceTwo parameters were investigated including slenderness ratio and load eccentricity It was found that better compaction of concrete resulted in higher values of the ultimate strength of concrete filled steel tubular members The tests show the importance of good concrete compaction for concrete filled steel tubes
Get PriceHigh strength concrete HSC has high compressive strength but low tensile and flexuralstrength toughness low resistance to cracking and brittle fracture characteristics To enhance theseengineering properties steel fiber can be used in the HSC Steel fiber from waste tyres SFWT can be usedas an alternative steel fiber for HSC due to low cost of the material
Get PriceThe influence of oil viscosities kerosene crude oil and diesel on the high performance concrete showed that increasing oil viscosity decreases mechanical strength [9] Under the
Get PriceResults shows that the compressive strength of cement mixed with Grey water is higher than that of tap water mixed cement After analysis of grey water samples and different basic tests on cement
Get PriceResearch result shows that the addition of bottom ash to concrete influenced workability in concrete but it did not significantly influence the compressive strength of concrete Based on the result of compressive strength test the optimal compressive strength was obtained from the mixture of 100% cement and 0% bottom ash REFERENCES 1
Get PriceThis research studies the effects of W/B ratios and palm oil fuel ash POFA on compressive strength water permeability and chloride resistance of concrete POFA was ground until the particles retained on sieve number 325 were less than 5% by weight POFA was used to partially replace OPC at rates of 15 25 and 35% by weight of binder The water to binder W/B ratios of concrete
Get PriceThe reinforced steel bars may be polluted with the oil when they placed over or inside the forms This pollution may affect the bond between the steel bars used and concrete and consequently the strength of reinforced concrete members will decrease In present investigation the bond strength of the oil polluted steel bars with concrete… Expand
Get PriceHistorically reference books on concrete technology and cement chemistry indicate that the leakage of oil into the cement in older grinding units resulted in concrete with greater resistance
Get PriceThe compressive strength flexural strength and split tensile strength of concrete are improved with the addition of fly ash and GGBS as partial replacement to cement The compressive strength of concrete is increased by a maximum of % at 28days with 4 16 % replacement
Get PriceBy this single test one judge that whether Concreting has been done properly or not Concrete compressive strength for general construction varies from 15 MPa 2200 psi to 30 MPa 4400 psi and higher in commercial and industrial structures Compressive strength of concrete depends on many factors such as water cement ratio cement strength
Get PriceThe influence of temperature on strength depends on the time temperature history of casting and curingand it can be described as [8] concrete cast and cure at the same temperature concrete cast at different temperatures but cure at a normal temperature concrete cast at a normal temperature but cure at different temperatures
Get PriceA 5″ thick slab of concrete will cost 20% more but it may boost the strength of the structure by 50% In general a thicker slab will be able to handle greater weight and survive longer Reinforcement is required for slabs at least 5″ thick On a prepared foundation commercial or construction vehicle driveways are typically 6″ thick
Get PriceThe compressive strength of concrete is one of its major properties that structural engineers take into consideration Clean the mounds and apply oil ii Fill the concrete in the molds in layers approximately 5cm thick Influence of size of aggregates on the Compressive strength of concrete
Get PriceThe findings show that the strength performance of foamed palm oil clinker concrete is influenced by amount of palm oil fuel ash integrated in the mix Addition of palm oil fuel ash at 10% successfully enhances the compressive strength of the lightweight concrete
Get PriceA previous study reported that the concrete slump increases slightly when the maximum size of the OPS aggregates increases from to mm 17] The strength of the interfacial transition zone tends to increase by improving the workability and compatibility of the mixture which increases the strength of the concrete Density
Get PriceEffect of POFA on Transport Properties of Concrete 52 Curing concrete 55 Effect of Temperature and Period Curing on Properties concrete 56 Steam Curing at Atmospheric Pressure 58 Effect of Steam Curing on Strength of Concrete Containing Pozzolan 59 Effect of Steam Curing Periods on Strength Concrete 59
Get PriceThe bearing capacity of your soil will help you determine if you need a shallow foundation or deep foundation Soil strength directly under the footing where loads are concentrated is crucial to foundation performance You can get a pretty good idea of the soil bearing capacity in the trench bottom using a hand penetrometer
Get PriceIncredible has successfully built lots of crushing plants, grinding plants and metal ore dressing plants for our customers.
With over 30 years of experience, we become a renowned manufacturer in the stone crushing and mineral grinding industry. Headquartered in Shanghai, China, our expansive factory spans over 120 hectares, empowering us to cater to the production demands of global customers.