March 16, 2018 – This just in from USGS. The envelope, please. The estimated total output of construction aggregates produced for consumption in 2017 was 2.26 billion metric tons, about the same as that in 2016. In its Mineral Commodity Summaries issued late last year, USGS estimated that in 2017, 1.33 billion tons of crushed stone and 890 million tons of construction sand and gravel – 2.22 billion metric tons – would be produced.
For all of 2017, total construction starts grew 3 percent to $745.9 billion, which followed the 6 percent increase reported for 2016. The full-year 2017 gain was dampened by a 35 percent downturn for the electric utility/gas plant category. If electric utilities and gas plants are excluded, total construction starts for 2017 would be 5 percent higher than the corresponding amount for 2016.
MIT Civil and Environmental Engineering Professor Oral Buyukozturk does research that focuses on mechanics and design of structures and innovative materials. His work in part focuses on behavior and design of concrete structures. Cement materials, including cement paste, mortar and concrete, are the most widely manufactured materials in the world. The demand for these materials is unlikely to decline any time soon.
Muck Rack makes it simple to find people, tweets, or articles that mention any name, keyword, company, hashtag etc. We've compiled this guide to help you make the most of your search.
Selecting a term
Start searching tweets, articles from media outlets, articles mentioned in tweets, journalists'
names, titles and bios with some suggested searches:
Companies or Topics (e.g. iPhone, Microsoft)
Phrases (e.g. "cloud computing") — use quotes to keep the terms together
Twitter handles (e.g. @username) — returns those who have mentioned or replied to
Names (e.g. "David Pogue")
Hashtags (e.g. #sxsw, #london2012)
Bio details (e.g. vegan, Olympics, father)
Muck Rack's Advanced Search allows for many boolean operators.
Find results that mention multiple specified terms, use AND or
+. For example, ensure each result contains both Elon Musk and Mark Zuckerberg by
searching Musk AND Zuckerberg or Musk + Zuckerberg.
Use the operators OR or , to broaden your search when you'd like either of
multiple terms to appear in results. (This is the default behavior of our search when no operators
are used). For example, results will contain either cake or cookie by searching cake OR cookie or cake,cookie
Use NOT or - to subtract results from your search. For
example, searching Disney will yield results about the Walt Disney Company as well as Walt Disney
World Resort. To exclude mentions of Disney World, search for Disney -World or Disney
When using one of these operators with a phrase, enclose it in quotation marks. For example, you can
find results about smartphones excluding Apple's iPhone 4S by searching smartphone -"iPhone
Exact case matching or punctuation
If you're searching for a brand name or keyword that relies on specific punctuation marks or capitalization, you can
find results that match your exact query by adding matchcase: before the keyword you're searching for, like matchcase:E*TRADE .
Use parentheses to separate multiple
boolean phrases. For example, to find journalists talking about having fun in Disney World or
Disneyland, search for ("disney world" OR disneyland) AND fun.
An asterisk can be used to search for any variation of a root word truncated by the asterisk. For example, searching for admin* will return results for administrator, administration, administer, administered, etc.
A near operator is an AND operator where you can control the distance between the words. You can vary the distance the near operation uses by adding a forward slash and number (between 0-99) such as strawberries NEAR/10 "whipped cream", which means the strawberries must exist within 10 words of "whipped cream".