Effect of Admixtures on Engineering Properties
It has been found that there is an increase in compressive strength of SCC with 20% addition of silica fumes to the concrete compared with 30% of fly ash for 28 days cured specimens & also the...
Characteristics of granite dust concrete with Msand as replacement
In this present study the super plasticizer used is Conplast SP 430 which is chloride free, super plasticizing admixture based on sulphonated naphthalene polymers. It acts as brown solution in water which instantly disperses. The properties of super plasticizer Conplast SP 430 is listed below in Table 4. Table 4. Properties of superplastizers. 2.5.
Experimental Study of Conplast SP430 in Concrete
The results showed that all the concrete mixes with presences Conplast SP 430 super plasticizer ... The goal of this study is to use dredging sand as raw materials for producing eco-friendly
Sp-430 optimization of super plasticizer - YouTube
Sp-430 optimization of super plasticizer Pervious concrete 32 subscribers Subscribe 45 Share 5.6K views 6 years ago This is the experiment for finding how much quantity of super plasticizer...
Effect of GGBS on Self-compacting Recycled Aggregate Concrete - Springer
Conplast SP 430 is used for the work as super plasticizer. H. Water Casting and curing of specimens is done with the portable water which is available. The correct quantity of water in the concrete is critical. It helps to form the strength giving cement gel. The quantity and quality of water required to be observed very carefully.
- Do superplasticizer products impact the environment?
- However, few systematic reports have been made detailing the environmental impacts of superplasticizer products (including the synthesis, packaging, and transportation, among others) with LCA methodology. This research aims to fill this gap.
- What is polycarboxylate superplasticizer (PCE)?
- 1. Introduction Polycarboxylate superplasticizer (PCE), when applied in cement-based materials such as cement paste, mortar and concrete, can significantly improve the workability, strength and durability of the material ( Zheng et al., 2019) by dispersing agglomerated cement particles ( Zhang et al., 2020 ).
- How are superplasticizer samples characterized?
- The superplasticizer samples were characterized with a Fourier transform infrared (FTIR) (VERTEX 70, Bruker Co., Germany) instrument with a transmission mode of 400–4000 cm −1 and a resolution of 4 cm −1. The Nuclear magnetic resonance ( 1 H NMR) spectra of the superplasticizer samples were obtained at 25 °C using an ARX-400 (Bruker Co., Germany).
- Can superplasticizers be used in concrete engineering?
- To further examine the application of the technically optimized superplasticizers in concrete engineering, production of the solid-state superplasticizer was carried out on different scales by applying the superplasticizers in the construction of a railway passenger dedicated line (PDL) that runs from Zhengzhou city to Xuzhou city in China.
- Is solid-state polycarboxylate superplasticizer better than liquid-state PCE?
- Herein a novel solid-state polycarboxylate superplasticizer (PCE) with low energy-consumption was designed and synthesized. In industrial application, solid-state PCE has exhibited better cement paste fluidity and concrete slump compared to liquid-state PCE.
- Can a solid-state superplasticizer improve slump retention in concrete?
- Replacing the superplasticizer to the solid-state superplasticizers, synthesized in this study, resulted in an improved slump retention in the concrete. This effect can be observed for each solid-state superplasticizer on each different scale of production ( Fig. 3 (e)) and, importantly, allows meeting the requirements of concrete engineering.
