Influence of Superplasticizer Dosage on Workability and
This study investigated the effect of adding a type of superplasticizer (polycarboxylate ether -PCE) on the workability and mechanical properties of concrete containing recycled coarse aggregate (RCA). The effect of increasing the PCE dosage while changing the water/cement ratio on RCA strength was also studied.
Effect of Superplasticizer Dosage on Workability and Strength
Effect of Super plasticizer Dosage on Workability and Strength Characteristics of Concrete DOI: 10.9790/1684-130407153158 www.iosrjournals.org 154 | Page
Effect of Superplasticizer Dosage on Workability and Strength
The research revealed that adding a little amount of superplasticizer to plastic concrete increased the workability and strength of the concrete until 1.5% of the total cementitious weight...
Effect of dosage of superplasticizer on earth concrete
The paper considers the effect of dosage of super plasticizer on the workability, density and strength characteristics of earth concrete. Through parametric experimental study of earth concrete specimens, the optimum dosage of the naphthalene based super plasticizer has been determined. 1 % dosage of the super plasticizer with earth concrete
Influence of mixing time and superplasticizer dosage on self
Many researchers reported that the addition of high SP dosage may increase workability and decrease its negative effects that are caused by long mixing time 16, 17. The increase in SP dosage may lead to wet surroundings, which increase workability, and the hydration process accelerates as water spreads between the cement granules.
- Does superplasticizer dosage increase the rate of gain in workability?
- Also, the rate of gain in workability is found to increases with increase in superplasticizer dosage. The upper limit of water cement ratio, i.e., the water cement ratio at which the matrix started to exhibit bleeding and segregation was found to reduce as the superplasticizer dosage is increases.
- Can superplasticizer improve the workability of concrete?
- 1. From the results of the study, it is decided that by addition of superplasticizer the workability of concrete can be enhanced. 2. By using the proper chemical admixtures slump loss can be reduced to a great extent. In superplasticizer concrete effect is too high. 3.
- What are the effects of superplasticizer?
- Effects of superplasticizer are obvious, i.e. to produce concrete with a very high workability or concrete with a very high strength. Mechanism of superplasticizer is through giving the cement particles highly negative charge so that they repel each other due to the same electrostatic charge.
- Does superplasticizer increase compressive strength?
- Addition of super plasticizer allows for better flowing concrete, which allows for a system with lower number of voids. As a result, the maximum attainable compressive strength increases with increase in superplasticizer dosage. As super plasticizer dosages increase, the water requirement to attain maximum compressive strength reduces.
- Which superplasticizer is used in this study?
- The superplasticizer used in this study is Glenium C380. It is a new superplasticizer, which not only suitable for pr estressed concrete, but also for o ther types of concrete. One of its benefits is that it can improve both early and final strength. In addition, slump retention a nd workability of concrete also enhanced by using
- How does superplasticizer dosage affect matrix workability?
- As the superplasticizer dosage is increased the workability of the matrix increases. The matrix with no super plasticizer has the least workability and the one with 3 % superplasticizer has the most workability. Also, the rate of gain in workability is found to increases with increase in superplasticizer dosage.
