ETYMOLOGIA SŁOWA PORTLAND CEMENT
Named after the Isle of Portland, because its colour resembles that of the stone quarried there.
CO OZNACZA SŁOWO PORTLAND CEMENT
cement portlandzki
Cement portlandzki jest najczęstszym rodzajem cementu powszechnie stosowanym na całym świecie, stosowanym jako podstawowy składnik betonu, zaprawy murarskiej, stiuku i większości nietłukowych zapraw. Rozwinął się z innych rodzajów wapna hydraulicznego w Anglii w połowie 19 wieku i zazwyczaj pochodzi z wapienia. Jest to drobny proszek wytwarzany przez materiały grzewcze w piecu, tworzący tzw. Klinkier cementowy w Portland, mielący klinkier i dodający niewielkie ilości innych materiałów. Kilka rodzajów cementu portlandzkiego jest dostępnych z najbardziej popularnych zwanych zwykłym cementem portlandzkim o szarym kolorze, ale dostępny jest również biały cement portlandzki. Cement portlandzki jest żrążkowy, więc może powodować oparzenia chemiczne, proszek może powodować podrażnienie lub ciężki ekspozycyjny rak płuc, a także zawierać pewne toksyczne składniki, takie jak krzemionka i chrom. Zagadnienia związane z ochroną środowiska to wysokie zużycie energii wymagane do kopalnienia, produkcji i transportu cementu oraz związanych z nimi zanieczyszczeń powietrza, w tym uwolnienia gazów cieplarnianych, dioksyn, NOx, SO2 i cząstek stałych.
Definicja słowa Portland cement w słowniku
Definicja cementu portlandzkiego w słowniku to cement, który utwardza się pod wodą i jest wytwarzany przez ogrzewanie zawiesiny gliny i pokruszonej kredy lub wapienia do klinkieru w piecu.
KSIĄŻKI POWIĄZANE ZE SŁOWEM «PORTLAND CEMENT»
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Portland cement w następujących pozycjach bibliograficznych Książki powiązane ze słowem
Portland cement oraz krótkie ich fragmenty w celu przedstawienia kontekstu użycia w literaturze.
1
Portland Cement: Composition, Production and Properties
- Introduction: nomenclature and composition of Portland cement - Raw materials - Clinker production processes; energy considerations - Techniques of clinker characterisation - Grinding, fineness and particle size distribution of cement - ...
2
The
Portland Cement Association's Guide to Concrete ...
Your one-source guide to Concrete-Based Homebuilding Systems. Residential contractors, architects, and developers will welcome this first total guide to the latest concrete-based homebuilding systems (CBHSs).
Pieter Vanderwerf, W. Keith Munsell,
1995
3
Portland Cement: Its Composition, Raw Materials, ...
This is a reproduction of a book published before 1923.
Richard Kidder Meade,
2012
4
Portland Cement: History--Uses--Composition--Process of ...
This is an EXACT reproduction of a book published before 1923. This IS NOT an OCR'd book with strange characters, introduced typographical errors, and jumbled words.
Willis Stanley Blatchley,
2010
5
Portland Cement Concrete Resurfacing
Kenneth H. McGhee. GLOSSARY aggregate interlock A load transfer mechanism
whereby the shear is carried by the aggregate-cement paste interface.
alternatives Different courses of action or systems that will satisfy objectives and
goals ...
6
The Contractor's Guide to Quality Concrete Construction
ASTM C 150, “Standard Specification for Portland Cement,” or ASTM C 1157, “
Standard Specification for Hydraulic Cements.” Many project specifications also
include a specification for blended cements, requiring compliance with ASTM C ...
7
Advances in
Cement Technology: Chemistry, Manufacture and ...
from the fact that of the four main phases of Portland cement, normally only the
calcium aluminoferrite phase is essentially coloured and this material imparts the
characteristics grey colour to ordinary Portland cement in which, generally ...
This mortar may be sold under various brand names, but portland cement is
always specified by type. Besides binding the masonry materials into a
permanent structure, mortar seals the joints against penetration of air and
moisture.
9
Guidelines for Early-opening-to-traffic
Portland Cement ...
4. This chapter discusses materials and mixture design considerations relevant to
the durability of EOT concrete. As with all concrete, EOT concrete is a blend of
cement (and potentially other cementitious materials), water, aggregates, and ...
10
Effect of Alkalis and Sulfate on
Portland Cement Systems
It was concluded that sulfate levels on the order of 3-3.6%, did not pose any major durability drawbacks under normal curing temperatures and low alkali contents (
WIADOMOŚCI, KTÓRE ZAWIERAJĄ SŁOWO «PORTLAND CEMENT»
Sprawdź, o czym dyskutuje się w prasie krajowej i zagranicznej oraz jak jest stosowane słowo
Portland cement w wiadomościach.
Stock art junkies
... of hardware store employees, but may be snorted should more desirable narcotics such as sawdust and portland cement be unavailable. «Boing Boing, Lip 15»
Updated Pavement LCA tool from Athena Sustainable Materials …
The US Life Cycle Inventory data for Portland cement has been updated. A new North American Slag Cement LCI profile has been added, ... «World Cement, Lip 15»
Production of building materials in Uzbekistan increased by 11.3%
Compared with the same period last year, large enterprises have increased production of the following key products: Portland cement (112.6 ... «International Cement Review, Lip 15»
Create hypertufa planters at Wellfield Botanic Gardens in upcoming …
The planter is made with different types of aggregates that are bonded by Portland cement. Participants in this workshop will construct a pot to ... «The Elkhart Truth, Lip 15»
Swazuri team to scrutinise titles for Athi disputed land
The National Land Commission (NLC) has ordered all title deed holders of the controversial land owned by the East Africa Portland Cement ... «K24 TV, Lip 15»
EPA Issues National Emission Standards of Performance for …
This action finalizes amendments to the National Emission Standards for Hazardous Air Pollutants (NESHAP) for the Portland Cement ... «Targeted News Service, Lip 15»
Twiga cement trains block makers
DAR ES SALAAM, Tanzania - Tanzania Portland Cement Company Limited (TPCC) recently conducted a training seminar for 250 cement ... «East African Business Week, Lip 15»
Headwaters (HW) to Release Quarterly Earnings on Monday
... used as a partial replacement for portland cement in the production of concrete. The energy technology segment is focused on reducing waste and increasing ... «Dakota Financial News, Lip 15»
Real World Economics: A topical day for a tropical economist
... concrete by hand, not in a motorized mixer but by turning and re-turning a pile of sand, crushed rock and Portland cement with shovels. «TwinCities.com-Pioneer Press, Lip 15»
US government supports coal ash recycling
“Every year we recycle more than 17 million t of coal ash into concrete,” said James G. Toscas, President and CEO of the Portland Cement ... «World Cement, Lip 15»