Effect of polycarboxylate ether-based superplasticizer
Commonly used high range water reducer admixture, the polycarboxylate ether-based (PCE) superplasticizer has been used to investigate its influence on workability and strength of concrete by...
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from the result gotten from the fresh and hardened properties of effect of superplasticizer at 0.25, 0.30 and 0.35% with 10% fly ash as a mineral admixture in replacement of cement, that increase of the superplasticizer dose lead to marginal reduction in unit weight but addition with gaining self-compatibility of the mixes.
Effect of Superplasticizer on Fresh and Hardened Properties
The utilization of superplasticizer will have positive effects on properties of concrete, both in the fresh and hardened states (4). In the fresh state, utilization of superplasticizer...
Effect of polycarboxylate ether-based superplasticizer dosage
This superplasticizer was added to the mix to make concrete of grade M60 by weight of cement with 0.15%, 0.25%, 0.35%, 0.45%, and 0.55% without altering the w/c ratio. Experimental results reveal that the restricted dosage of the superplasticizer provided in Plain and reinforced concrete code of practice in Indian standard, IS456:2000
Dosage effect of superplasticizer on self
The main objective of this paper is to characterize the dosage effect of superplasticizer on the fresh and hardened properties of the mixes. Then, the relationships between the used rheology tests (slump flow, V-funnel, L-box, yield stress, and plastic viscosity) and compressive strength are deduced. 2. Experimental program2.1.
- Does superplasticizer affect fresh and hardened properties of concrete?
- However, the conclusion, which follow are drawn f74 Salahaldein Alsadey: Effect of Superplasticizer on Fresh and Hardened Properties of Concrete based on experimental results and observations presented this reason, more concrete mixes that contain different earlier in the study.
- How long does a superplasticizer last in a concrete mix?
- concrete. After 90 minutes, concretes with superplasticizer dosage present zero slump. On the other hand, As a result, retaining the slump of the concrete than the normal concrete. Figure 1. Workability test results for various concrete mixes 4.2. superplasticizer is shown in Tables 3. T his test is per formed on 28 days.
- 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.
- Why is a superplasticizer used?
- A superplasticizer serves as a dispersant and improves the flow characteristics of concrete mixtures. It enhances the performance of the hardened fresh paste. Studies on the suitable type of viscosity modifying agent for producing Self-Consolidating Concrete (SCC) showed that segregation and jamming of aggregate were absent in all mixes.
- Does superplasticizer increase compressive strength of concrete?
- The tests considered for study are, slump test, slump loss, flow table and compressive strength test The results show that for the constant water cement ratio, increase of superplasticizer dose in properties of concrete leads to gain of good workability. Moreover, there is also increase in compressive strength than that of normal concrete mix.
- Does superplasticizer reduce unit weight?
- The results from the fresh and hardened properties of a superplasticizer at 0.25%, 0.30%, and 0.35% with 10% fly ash as a mineral admixture in replacement of cement show that an increase in the superplasticizer dose leads to a marginal reduction in unit weight. However, it also brings self-compatibility to the mixes.
