Super Plasticizer Research Papers - Academia.edu (original) (raw)

Due to rapid growth in population an
is a much need to go for vertical construction to satisfy the basic need of creating
shelter to the dwellers. To construct high rise buildings usage of reinforcement will be
more to withstand the various loads acting on it. There is a chance of failure of
structures due to various atmospheric pressures acting on the structures due to
increase in the age of the concrete. To overcome all these there is need to work on
production of concrete to perform the characteristics in all stages of concrete age.
High Performance Concrete is one of such material which satisfies all the above
discussed needs.
High Performance Concrete
durability and high strength when compared to conventional concrete. The usage of
some mineral and also chemical admixtures like fly ash and Super plasticizer will
amplify the strength, durability and workability qualities to a very high scale.
aggregate is one of the silent constituents of concrete. River sand is becoming a
lacking material. Sand mining from rivers has become obnoxious. Manufactured Sand
is a substitute for river sand
of transportation from remote river sand bed. The other benefit is, it can be dust free,
the sizes of M-Sand can be regulated easily so that it can accommodate the required
grading for the given constructionIn this present investigation, the permeability characteristics of the High
Performance Concrete with replacement of fine aggregate by Manufactured Sand with
different percentages (i.e., 0%, 20%, 40%, 60%, 80%,100%) has been studied. A mix
proportion of 1:1.11:2.1 (HPC) is designed to give M60 grade concrete using OPC 53
grade,12% of fly ash, 20mm and 12 mm sizes of 30% and 70% coarse aggregate
respectively, river sand and 1.5% of super plasticizer (CONPLAST SP430) with a
water cement ratio of 0.35.
As part of research it is concluded that use of M-Sand in place of Natural river
sand has improved the permeability characteristics and meeting the requirements at
all stages of HPC.

- by
- •
- Fly Ash, High Performance Concrete, Super Plasticizer, Compressive Strength Test
- by Kwan Hoe
- •
- Civil Engineering, Normal Concrete, Super Plasticizer, Silica Fume

Concrete is widely used structural material consisting essentially of a binder and a mineral filler. Concrete has been the leading material since it was used and is bound to maintain its significant role in the upcoming future due to its durability, adaptability to any shape and size and many other applications. It is a composite material produced by mixing cement, an inert matrix of sand and gravel or crushed stone. Pervious concrete is a type of concrete that has a low water-cement ratio and contains none or very little amount of sand. In the present paper, the behavior of pervious concrete has been studied experimentally to reduce urban heat island effect and sustainable solution. Various specimens were prepared with Cement/Aggregate (C/A) ratio of 1:3 and 1:5 by adding super plasticizers (0.2% & 0.3%) and varying size of aggregates. The water-cement ratio was kept constant 0.30. Different properties of pervious concrete e.g. compressive strength, split tensile strength, rebound hammer test at 28 days and Infiltration rate test for C/A ratio of 1:3 and 1:5 have been studied experimentally. Experimental results showed that the strength of pervious concrete decreased with the increase in C/A ratio and also the permeability is decreasing with the increase in strength i.e., with the decrease in C/A ratio.

- by Mohamed ROUIS
- •
- Compressive Strength, Super Plasticizer
- by IJERA Journal
- •
- Compressive Strength, Flexural Strength, Super Plasticizer

Concrete had reached its increasing demand since the construction industry involved innovation in all forms of phenomenal infrastructural works. The main objective of our project lies in find a perfect solution for the diminishing resources of cement, fine and course aggregates. Our ideology was adding metakaolin, foundry sand and demolition waste to the concrete and studying the strength properties of concrete with the variation in nominal mix. i.e., to study the strength properties of concrete (M20 Grade) for mix ratio of 5%,10%,15%,20% and 25% at 7 and 28 days. The strength properties being studied in our theses are as follows: 1. Compressive strength 2. Split Tensile strength 3. Flexural strength These properties were then compared with the nominal concrete mix.

- by IAEME Publication
- •
- Foundry Sand, Super Plasticizer, Metakaolin, Demolition Waste

Concrete had reached its increasing demand since the construction industry
involved innovation in all forms of phenomenal infrastructural works. The main
objective of our project lies in find a perfect solution for the diminishing resources of
cement, fine and course aggregates. Our ideology was adding metakaolin, foundry
sand and demolition waste to the concrete and studying the strength properties of
concrete with the variation in nominal mix. i.e., to study the strength properties of
concrete (M20 Grade) for mix ratio of 5%,10%,15%,20% and 25% at 7 and 28 days.
The strength properties being studied in our theses are as follows:
1. Compressive strength
2. Split Tensile strength
3. Flexural strength
These properties were then compared with the nominal concrete mix.

- by IAEME Publication
- •
- Civil Engineering, Foundry Sand, Super Plasticizer, Metakaolin

In the present study, replacement of fly ash with cement has been studied with cement at 10%, 20%, 30%, 40% and 50%. In this paper the effect of fly ash on workability, compressive strength and modulus of elasticity were studied. This study was also conducted to evaluate the compressive strength of concrete with different fly ash contents with different curing methods. The mix design was arrived for M30 concrete with w/c ratio of 0.4 and the super plasticizer was added for obtaining the required workability in the fly ash based concrete. The optimum compressive strength is to be finalized for preceding the work with adding internal and external curing compounds for determining the efficiency of curing compounds on fly ash based concrete. For the internal curing classic acryfix BS and for external curing cure c water based curing compounds were used in this study. These test were carried out to evaluate the mechanical properties at the age of 28, 56 days. The regression analysis was carried out and formulate regression equation for conventional and fly ash based concrete using origin pro software.

- by GJESR Journal
- •
- Compressive Strength, Fly Ash, Super Plasticizer, curing compounds

The usage of concrete is growing with the exploding scope of construction industry. This called for the extensive production and usage of cement. Among all the ingredients of concrete, cement has deleterious effects on environment. As the usage of concrete is inevitable, pre-emptive measures should be taken to reduce the usage of cement in concrete while maintaining the same engineering properties. To address this cause, research has been carried out on various constituents and parameters of concrete which lead to the realization of new construction materials and practices. But the scope of effects on concrete caused by altering the properties of water has long been neglected. On account of this obscurity, this can be potential area of interest. When water is magnetized, it exhibits structural changes which increases the specific surface area of water. When this magnetized water is used in concrete instead of normal water, it is found that the compressive strength increases considerably. This additional strength attained by the usage of magnetized water can be used to address the need to reduce cement usage. In this attempt to reduce the usage of cement, fly ash which has immense potential to be used in construction industry, can be used to replace cement in concrete to a considerable extent when magnetic water is used. The present research work is carried out to investigate the effect of Magnetic Water on the Compressive strength studies on fly ash based magnetic water concrete (M30 & M40 grade). Examine the effect of magnetic water on compressive strength studies are also conducted to evaluate micro structure on fly ash based magnetic water concrete (M30 & M40 grade). The results of tests showed that, in most cases, concrete made with magnetic water (magnetic water concrete), has higher compressive strength values, superior quality than those of normal water concrete

- by GJESR Journal
- •
- Compressive Strength, Fly Ash, Super Plasticizer, curing compounds

Self-Compacting Concrete (SCC) is
a highly workable concrete. It can flow under its
own weight through congested reinforcement
without any segregation and bleeding. In this work,
the mechanical properties of SCC have been studied
made of Bagasse ash.. The Bagasse ash was
partially replaced with the powder content of 20%.
After number of trials the final mix (1:1.421:2.857)
was arrived as per IS code.10262:2009 and
EFNARC specifications. The fresh and hardened
properties of BASCC were found for varying
percentage of super plasticizer (3% to5%) and
Viscosity Modifying Agent (0.3%). The mechanical
property of BASCC were found by casting Cubes,
Cylinders. Specimens were tested with Compressive
Strength, Split Tensile Strength. Totally nine cubes
and cylinders have been cast of size 150mmx 150mm
and 150 mm dia and 300mm height. Thus, the effect
of BASCC with super plasticizer of 3.5%, 4% and
VMA of 0.3% for constant bagasse ash content
(20%) is obtained from the results of this
experimental work. Finally at 3.5% a better result
was attained.

Steel fiber reinforced self-compacting concrete (SFRSCC) is a relatively new composite material which congregates the benefits of self-compacting concrete (SCC) technology with the profits derived from the fiber addition to a brittle cementitious matrix. The crack propagation can be reduced by addition of steel fibres in concrete. Addition of fibres reduces workability of concrete which is the major drawback. SFRSCC is a trending concrete where the required workability is obtained by addition of chemical admixtures such as Super plasticizer (SP) and Viscosity Modifying Agent (VMA). In the present work, an effort is made to make a comparative study of stress-strain behavior of M30 grade steel fiber Reinforced Self-Compacting Concrete (SFRSCC). Complete Stress – Strain behavior has been presented and an empirical equation based on mathematical model is proposed to predict the stress – strain behavior of such concrete under compression. The proposed mathematical equation shows good correlation with the experimental results. There is an improvement in the Axial Compressive Strength of SCC which could be due to the addition of the steel fibers

- by GJESR Journal and +2
- •
- Self Compacting Concrete, Super Plasticizer, Steel Fibre, Self Compacting Concrete Using Steel Fibre

The cost of concrete is governed by the cost of
material, plant and labour. The cost of cement is several times
higher than the aggregate. Therefore, the objective is to produce
the concrete mix as lean as possible and should be economical.
That is why designed mixes are preferred to nominal mix.
Generally in nominal mixes, cement in higher quantity is used
than the designed mixes. Since in production of concrete, the cost
of cement is governing factor, therefore, to minimize the cost of
concrete, it is essential that concrete mixes must be designed.

- by IJSRP Journal
- •
- High Strength and High Performance Concrete, Cement, Fly Ash, Super Plasticizer

In this study, the effects of cement, fly ash and super plasticizer, improver materials by adding into the grout, on soil-binder mixing columns called as deep mixing columns (DMC) are investigated. Fly ash is a waste product emerging from burning in the thermal power plant. By evaluating waste materials in this way, environmental pollution will be reduced directly and cement usage and carbon emissions caused by cement production will be reduced indirectly. By using super plasticizer into the grout, less porous and permeable elements with more structural strength will be manufactured. In order to achieve these goals, an experimental program was developed using statistical and experimental design methods. It is desired to determine the optimum grout quantity and consistency required to maximize the strength of the column manufactured with DMM in silty soils and silty sands. For this purpose, the amounts of fly ash (0-40%), cement (3-11%), super plasticizer additive (0.5-2%) and water/binder percentage (0.5-1.25%) were chosen as variables to form grouting material. Experimental studies have been carried out using Taguchi method, which is a powerful optimization technique, using 5-parameter and 4-level L16 design table. Undrained-unconsolidated triaxial test specimens were prepared in PVC tubes with diameter of 47 mm and length of 100 mm for each design for curing time of 28 days. As a result of the experiments, deviator stress of the soil-binder mixture was found for each design.

- by Avanti Publisher
- •
- Civil Engineering, Cement, Fly Ash, Taguchi method
- by sanjay srivastava
- •
- High Strength and High Performance Concrete, Cement, Fly Ash, Super Plasticizer

Self-Compacting Concrete (SCC) is one of the most important developments in the building industry. It provides solution to the problems occurring in normal concrete such as inadequate compaction which affects the strength and durability of structures. This project is taken up with the objective to evaluate the performance of self compacting concrete for M25 grade using Recron fibers and by adding suitable superplasticizer and Viscosity Modifying Agent (VMA). Basic tests for fine aggregate, coarse aggregate, cement, freshly prepared SCC tests such as slump flow test , J-ring , V-funnel, U-box tests were done and checked against the specifications given by EFNARC guidelines. Then mechanical properties such as compressive strength, tensile strength and impact strength were studied and the results were compared with normal SCC mix.

- by IAEME Publication
- •
- Foundry Sand, Super Plasticizer, Metakaolin, Demolition Waste

Self-Compacting Concrete Originally developed in Japan, SCC technology was made possible by the much earlier development of Superplasticisers for concrete. To compare the performance of SCC with Fly Ash 20%, Silica Fume 10%, Rice Husk Ash (5%, 10%, and 15%) as a partial replacement of cement, due to the high increase in construction which has brought a heavy demand for ingredients of concrete such as cement and sand, and these materials are becoming costly and scarce. The use of self-compacting concrete (SCC) is spreading worldwide because of its very attractive properties in the fresh state as well as after hardening. By using Super plasticizer (High Range Water Reducing Admixture) to increase the workability & admixture should bring about the required water reduction & fluidity but should also maintain the dispersing effect. The Using M40 grade of concrete with curing period of 7days, 14days and 28days.To Study the workability and mechanical properties of Self-Compacting Concrete & Compare to Conventional Self-Compacting Concrete. The laboratory testing included slump flow test, L-Box test, V-Funnel test, compressive strength test, and splitting tensile strength test.

- by GRD JOURNALS
- •
- Fly Ash, Self Compacting Concrete, Super Plasticizer, Materials Testing
- by Editor IJRET
- •
- Civil Engineering, Cement, Workability, Super Plasticizer

An extra ordinary cement which streams and solidifies under its own weight in this manner disposes of the issues of putting cement in troublesome conditions is known as Self Compacting Concrete. It even diminishes the time in putting vast segments and in the meantime giving high quality and better toughness attributes when contrasted with the Normal Concrete. The dif erent parts of SCC including the materials and blend plan, diverse test techniques, for example, V-channel test, L-Box test and so on., are talked about in this paper.

- by IAEME Publication
- •
- Properties, SCC, Super Plasticizer, Special Concrete
- by Sivakumar Naganathan
- •
- Chemical Engineering, Compressive Strength, Super Plasticizer

An extra ordinary cement which streams and solidifies under its own weight in
this manner disposes of the issues of putting cement in troublesome conditions is
known as Self Compacting Concrete. It even diminishes the time in putting vast
segments and in the meantime giving high quality and better toughness attributes
when contrasted with the Normal Concrete. The different parts of SCC including the
materials and blend plan, diverse test techniques, for example, V-channel test, L-Box
test and so on., are talked about in this paper

- by IAEME Publication
- •
- Properties, SCC, Super Plasticizer, Special Concrete

The Rice Husk Ash can be used as an alternative material instead of ordinary Portland cement. This technology could reduce the CO2 emission to the atmosphere caused by the cement industries. In the present investigation, a feasibility study is made to use Rice Husk Ash as an admixture to replace Portland cement in Concrete, and an attempt has been made to investigate the strength parameters of concrete (Compressive and Flexural). For control concrete, IS method of mix design is adopted and considering this a basis, mix design for replacement method has been made. Five different replacement levels namely 5%, 7.5%, 10%, 12.5% and 15% are chosen for the study concern to replacement method with range of curing periods starting from 7days and 28days are considered in the present study. Therefore, this paper aims at experimental study of variation of percentage of rice husk ash with cement for improvement in properties of concrete.

- by Özlem Şişik
- •
- Concrete, Waste Concrete, Super Plasticizer, Recycle