EricBarger.me

Photography, writing, Apple tech, and more…

Technical

You can read several articles I have written/co-written that revolve around technical subjects. I concentrate mostly on precast concrete where my degree in Civil Engineering and job experience play a large role in my technical writing past times.

Concrete Characteristics

Final Concrete Density
How much does your concrete weigh? It is a question to which far too many people assume the wrong answer. 150 pounds per cubic foot is the widely accepted density of concrete with reinforcing rebar included. In reality, the final density could be significantly lower. A simple calculation can take the density from a guess to a more precise value of precast concrete applications. [More]

Debunking the 28 Day Concrete Curing Myth
Throughout the construction industry a common belief exists: concrete takes 28 days to “cure” and reach 100% of its strength. This myth comes from unnecessary precaution on the part of the specifier and a misunderstanding of what curing actually means. Some regulators will often characterize concrete as “green” if it has not cured for a certain time frame, leading to unnecessary delays and higher project costs. Evaluating separately the concepts of measured compressive strength and curing will shed light on the mystery that surrounds 28 days
[More]

Manhole and Box Culvert Tips

Sizing the box culvert lifting pin best practice
One of the first and most important attributes to calculate is the lifting utility anchor you will use to lift the box culvert. Sizing the utility anchor can be tricky if you are not familiar with lifting anchors.
[More]

Precast Math: Block-out volume in a manhole
A common calculation in precast concrete manufacturing is determining the volume of a round block-out in a manhole wall. A round block-out is a hole either cast or cored into the side of a manhole wall. Mathematically there are several methods to calculate this volume, ranging from a simple geometry formula to the theory intense calculus method.
[More]


Underground Tank Integrity

Analysis of Inflow and Infiltration from Unsealed Septic Tank Access Ports
Watertight tanks are generally overlooked as a solution to inflow and infiltration (I&I) problems in municipal and decentralized wastewater systems. The use of watertight tanks can dramatically reduce treatment costs, reduce overflow events and help contain the ever-increasing problem of inflow and infiltration. [More]

Harmful effects of isolation slabs installed over light duty underground tanks in traffic areas
Quality concrete is important in the manufacturing and performance of the box culvert. Since the concrete is exposed to the weather and normally running water it is important that a high strength, well proportioned mix design be utilized. [More]

Public Utility Infrastructure Improvements through Enhanced Grease interceptor Specifications
Wastewater utilities are experiencing increased pressure to maintain cost-effective operations while ensuring compliance with state and federal regulations. Overflows from manholes and overloads of wastewater treatment facilities often lead to regulatory non-compliances, system outages, undesired repair costs, and tarnished public image of the utility. Pervasive system problems can lead to regulatory intervention and forced remediation programs. Remediation efforts often lead to increased costs and higher rates, as well as public relations problems with utility customers.
[More]

Traffic-Rated Tank Design
Specifying and producing HS-20 traffic-rated tanks in existing molds can be risky business. [
More]

Contact
Contact me here through the web site.

Notice
EricBarger.me makes every attempt to ensure any advice or information contained in this website is accurate and correct. No liability of any kind including liability for negligence is accepted in this respect by EricBarger.me, its servants, affiliates or agents.