New eco-friendly hydraulic binder based on a combination
The incorporation of the polymeric admixture of polycarboxylate into concrete formulated by natural pozzolan has the advantage of being done as late as possible during the mixing of concrete,...
Bio-based admixtures - Sika
This eco-friendly innovation is in line with one of Sika's stated corporate goals of sustainable product development. RENEWABLE VEGETABLE SUBSTANCES IN PLACE OF OIL-BASED RAW MATERIALS The key components of standard concrete admixtures are polymeric components chemically produced from oil-based raw materials.
Polycarboxylate Superplasticizer Powder & Liquid for Concrete
The water reduction rate of polycarboxylate admixture can reach more than 25% ~ 40%, which is suitable for high-performance concrete production. The loss is small while the slump is light. In the case of ready-mixed concrete for about 2 hours, the slump loss will be controlled within 15% by the application of it, which is beneficial to pumping construction and the long-distance transportation
Modified Carboxymethylcellulose-Based Scaffolds as New Potential
The new water-soluble admixtures were synthesized using a complex carboxymethylcellulose-based backbone that was first hydrolyzed and then sulfo-ethylated in the presence of sodium vinyl...
Superplasticizer: Types, Advantages & Disadvantages - Constructionor.Com
Superplasticizers (SPs) are also known as high- range water reducers that are additive used in making high strength concrete. Plasticizers are chemical compounds that enable the production of concrete with approximately 15% less water content. Superplasticizers allow a 30% or more reduction in water content.
- 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.
- Does a PCE superplasticizer deteriorate GWP based on low carbon binders?
- This calculation suggests that even for a worst-case scenario where a PCE dosage of 2.5 % by weight of concrete is applied, the PCE superplasticizer does not deteriorate the favorable GWP of concretes based on low carbon binders.
- 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 ).
- Are chemical admixtures suitable for green and environmentally friendly concrete?
- Future perspectives The development of chemical admixtures for green and environmentally friendly concrete from biomass is an emerging subject that is gaining wide attentions worldwide.
- 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.
- How to mix polycarboxylate superplasticizer?
- Polycarboxylate Superplasticizer must preferably be added in the mixing water and in case of ready-mix concrete where the product can be added on fresh concrete and in a mixing truck, it is necessary to mix at a high speed for about 6 – 8 minutes. Setting Time Deff.
