Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Additives and Fillers in Concrete

Additives and Fillers in Concrete

Additives and fillers are integral to enhancing the properties of concrete. Pozzolans and blast-furnace slag are additives or admixtures due to their reactions with calcium hydroxide released during cement hydration. Fillers, which are finely ground and similar in fineness to Portland cement, improve concrete attributes such as workability density, and reduce capillary bleeding or cracking. Some fillers possess hydraulic properties or participate in benign reactions within the cement paste.
The...

Retarders

Retarders

Retarders are chemical admixtures designed to extend the setting time, which is especially useful when there is a delay in sequential concrete pours to prevent cold joints and to achieve a cohesive structure. Retarders, when used in appropriate amounts, can also enhance the architectural appearance of exposed aggregate finishes.
The function of retarders is to delay the setting of concrete, and this effect can be measured using a penetration test. The retardation process involves adding...

Accelerators

Accelerators

Accelerators in concrete serve as admixtures to speed up the hardening process, enabling the concrete to achieve early strength faster. Although accelerators do not necessarily impact the time it takes concrete to set, they reduce this time in practice. A common accelerator is calcium chloride, which is particularly useful for hastening early strength development in cold weather or for rapid repair jobs that require quick heat generation after mixing.
The effectiveness of calcium chloride can...

Plasticizers

Plasticizers

Water-reducers, or plasticizers, are chemical admixtures used in concrete to improve strength and workability. These additives reduce the water-cement ratio without compromising workability, lower the cement content while maintaining the same workability, or increase workability to assist concrete placement in inaccessible areas.
Plasticizers function by using surface-active agents to create repulsive electrostatic forces between cement particles. This dispersion enhances the concrete's...

Waterproofing and Anti-Bacterial Admixtures in Concrete

Waterproofing and Anti-Bacterial Admixtures in Concrete

Concrete's susceptibility to water absorption is due to the capillary action within the pores of its hydrated cement paste. This action draws water in, creating the need for waterproofing admixtures to prevent such penetration. The efficacy of these admixtures is contingent upon the water pressure, with variations arising from different conditions such as rain, capillary rise, or hydrostatic pressure in structures intended to hold water.
Waterproofing admixtures render concrete hydrophobic,...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Levels of concentrates and protein sources in intensive pasture-based beef cattle rearing during the rainy season in the Amazon biome.

PloS one·2025

Same author

A new system of phosphorus and calcium requirements for lactating dairy cows.

PloS one·2024

Same author

Intensively Reared Nelore Steers with Levels of Concentrate and Protein Sources during the Dry Season.

Animals : an open access journal from MDPI·2024

Same author

Nutritional and productive performance of purebred Nellore heifers and crossed with Brangus and Braford ﬁnished in a feedlot system.

Anais da Academia Brasileira de Ciencias·2024

Same author

Nutritional Performance of Grazing Beef Cattle Supplemented with High-Protein Distillers' Dried Grain.

Animals : an open access journal from MDPI·2024

Same author

Effect of low-glucosinolate crambe meal in diet on lactational performance, efficiency of nutrient utilization, and hepatic function of crossbred Holstein × Zebu and Jersey cows.

Tropical animal health and production·2023

Search research articles

Related Experiment Video

Updated: Jun 3, 2025

How to Create Conditioned Taste Aversion for Grazing Ground Covers in Woody Crops with Small Ruminants

How to Create Conditioned Taste Aversion for Grazing Ground Covers in Woody Crops with Small Ruminants

Published on: April 30, 2016

Additives in Supplements for Grazing Beef Cattle.

Karine R S Naves¹, Kamila A K Moraes¹, Lorrayne O da Cunha¹

¹Núcleo de Estudos em Pecuária Intensiva-NEPI, Universidade Federal de Mato Grosso, Campus Universitário de Sinop, Sinop 78557-267, Brazil.

Animals : an Open Access Journal From MDPI

|January 8, 2025

Summary

Supplementing pasture-raised beef cattle with protein-energy supplements (PESs) increased dry matter intake and improved nitrogen utilization. However, additives like monensin sodium, functional oil, or active yeast did not further enhance nutritional parameters in this study.

Keywords:

active yeast digestibility functional oil marandu palisadegrass monensin pasture

More Related Videos

Author Spotlight: Isolation and Characterization of Equine Submucosal Enteric Glia — Implications for Preventing Postoperative Complications in Colic Surgery

Author Spotlight: Isolation and Characterization of Equine Submucosal Enteric Glia — Implications for Preventing Postoperative Complications in Colic Surgery

Published on: October 4, 2024

Bovine Mammary Gland Biopsy Techniques

Bovine Mammary Gland Biopsy Techniques

Published on: December 23, 2018

Related Experiment Videos

Last Updated: Jun 3, 2025

How to Create Conditioned Taste Aversion for Grazing Ground Covers in Woody Crops with Small Ruminants

How to Create Conditioned Taste Aversion for Grazing Ground Covers in Woody Crops with Small Ruminants

Published on: April 30, 2016

Author Spotlight: Isolation and Characterization of Equine Submucosal Enteric Glia — Implications for Preventing Postoperative Complications in Colic Surgery

Author Spotlight: Isolation and Characterization of Equine Submucosal Enteric Glia — Implications for Preventing Postoperative Complications in Colic Surgery

Published on: October 4, 2024

Bovine Mammary Gland Biopsy Techniques

Bovine Mammary Gland Biopsy Techniques

Published on: December 23, 2018

Area of Science:

Animal Science
Ruminant Nutrition
Pasture Management

Background:

Pasture-based beef systems rely on forage and supplements for optimal production.
Supplementation and additives can enhance nutrient utilization and production efficiency in cattle.

Purpose of the Study:

To assess the impact of additives in protein-energy supplements (PESs) on intake, digestibility, and ruminal parameters of pasture-raised beef cattle.
To compare the effects of monensin sodium, functional oil, and active yeast within PESs.

Main Methods:

A 5x5 Latin square design with five male cattle grazing marandu palisadegrass.
Treatments included a mineral mixture (MM), PES, and PES with monensin sodium, functional oil, or active yeast.

Main Results:

PES significantly increased total dry matter intake (DMI), DMI as % body weight (%BW), crude protein intake, and digestible organic matter intake.
Additives did not alter nutrient intake or digestibility.
PES increased ruminal ammonia nitrogen, serum urea nitrogen, fecal nitrogen, retained nitrogen, microbial nitrogen synthesis, and microbial efficiency compared to MM.

Conclusions:

Protein-energy supplements enhance DMI and nitrogen metabolism in pasture-raised beef cattle.
Monensin sodium, functional oil, and active yeast, under the study's conditions, did not provide additional nutritional benefits beyond the PES itself.