Chief engineer, national slag association presented at university of alabama slag cement seminar april 30, 1981 he term slag cement is a very general one that can include many types of. Slag cement not on this prequalified list must be sampled in accordance with the departments guide schedule of sampling and testing. On the one hand, a ground granulated blast furnace slag cement, a type iiib 42. A typical combination is 50% ggbs with 50% portland cement, 4but percentages of ggbs anywhere between 20 and 80 % are commonly used. Blended portland cements blended cement, as defined in astm c 595, is a mixture of portland cement and blast furnace slag bfs or a mixture of portland cement and a pozzolan most.
Portland cement is a hydraulic cementcapable of setting, hardening and remains stable under water. Portland slag cement specification internet archive. Portland slag cement specification book pdf free download link or read online here in pdf. Slag cement benefits and use in concrete slag cement news. The use of ggbs in concrete has proved to improve certain properties, when compared to portland cement concretes. Compressive strength portland cement silica fume ground granulate blast furnace slag blended cement. Slag cement a newold material in concrete paving 2 first used in north america in paving in the late 70s in chicago il edens expressway as part of a blended cement system 25 45% slag cement. Chapter 3proportioning concrete containing slag cement. National slag mf 1816 association history of slag cements donald w. This report presents available information regarding the use of aircooled blast furnace slag acbfs as coarse aggregate in concrete pavements. They include portland cement as covered by aashto m85 2, portland blast furnace slag cement blended cement type is, and slag cement slag cement type s as per aashto m240.
Evaluation of portland cement concrete pavement with high. Properties of concrete with ground granulated blast furnace. The width of the fields is a measurement of the output factor. Case studiesnorth american mass concrete projects featuring astm c989 slag cement by m. Greening effect in slag cement materials sciencedirect. Slag cement is commonly found in readymixed concrete, precast concrete, masonry, soil cement and high temperature resistant building products.
Slag cement definition of slag cement by merriamwebster. First concrete airport paving used as a separate cementitious material. Advances in civil engineering hindawi publishing corporation. Is code book cement and concrete indian standard codes. Portland slag cement specification book pdf free download link book now. Cemex portland cementlime mix is a factory blended product consisting of portland cement that meets astm c150 specifications and hydrated lime that meets astm c207 type s specifications. The result is a product that, when blended with portland cement in various combinations, offers significant advantages over mixes containing 100% portland cement. Con 123cementitious materialssession 7slag cement 2. Ground granulated blast furnace slag, slag cement, blast furnace slag, granulated slag, pelletized slag, metallic slag, slag cement grade 80, 100, 120, nonmetallic slag. Portland slag cement may also be manufactured by separately grinding portland cement clinker, gypsum and granulated slag and then mixing them intimately. St marys cemplus is produced by finely grinding granulated blast furnace slag, a glassy byproduct of iron production that has cementitious properties similar to portland cement.
Effects of ground granulated blast furnace slag in portland cement concrete book summary. Ground granulated blastfurnace slag cement ggbfs ground granulated blastfurnace slag is the correct technical term for slag that is finely ground and is used as a separately batched cementitious materials. Slag cement is produced by finely grinding granulated blast furnace slag, a glassy byproduct of iron production, and blending it with portland cement to create a product that has a number of advantages over mixes containing 100% portland cement. Granulated blast furnace slag was first developed in. The molten slag must first be separated from the molten iron. Slag cement prevents the occurrence of efflorescence, the staining of concrete surfaces by calcium carbonate deposits. Ordinary portland cement opc was replaced with 50, 60, 70, 80, and 90% groundgranulated blastfurnace slag ggbfs by weight. Among its measurable benefits in concrete are better workability and finish ability, higher compressive aggressive chemicals. The coordinates of the grinding table diameter and number of rollers can be read off from the table. I had practically used ppc cement in almost all projects.
Fly ash, slag, silica fume, and natural pozzolans, chapter 3. A ground blastfurnace granulated slag used in the production of construction materials and items differs in its chemical composition, dispersion, the quantity of. On its own, ground granulated blast furnace slag ggbs hardens very slowly and, for use in concrete, it needs to be activated by combining it with portland cement. Slag is ground to the fineness of portland cement or finer. The xcoordinate indicates which product throughputs can be generated using the respective mills. Lime slag cements have been specially used for seawater and underground foundation works, because of their resistance to attack by sulfates and because of their good plasticity. Groundgranulated blast furnace slag is highly cementitious and high in csh. In order to promote public education and public safety, equal justice for all, a better informed citizenry, the rule of law, world trade and world peace, this legal document is hereby made available on a noncommercial basis, as it is the right of all humans to know and speak the laws that govern them. These pcr are valid for, and provide requirements, for businesstobusiness btob epds. Specification for ordinary portland cement, 33 grade click here is 269 20. Dirt does not adhere to slag cement concrete as easily as concrete made with portland cement, reducing maintenance costs. Use of concrete containing slag cement in transportation structures in virginia by c. Properties of concrete with ground granulated blast. Feret 40 cited as an example a breakwater at calais.
It iscomposed of calcium silicates and someamount of gypsum. When the iron is processed using a blast furnace, slag and iron both collect at the bottom of the furnace. While there are many applications and benefits of slag cement, a few are highlighted below and detailed information sheets are located here. Slag cement also produces a smoother, more defect free surface, due to the fineness of the slag particles. Specification for ordinary portland cement, 33 grade click here is 383 1970. The tests, as indicated in table 2 attached and at the levels of control specified therein, shall be carried out on the whole packing of portland slag cement and appropriate records maintained in accordance with clause 2 above. A mixture of portland cement and granulated slag, containing up to 65 percent slag, is known in the englishspeaking countries as portland blastfurnace slag cement. A cementitious slurry comprising microfine ground blast furnace slag and normally ground blast furnace slag. By the 1950s, the advances made in both the slag removal and the granulation processes resulted in it being used as an entirely separate product that was added at the concrete mixer.
C109c109m test method for compressive strength of hydraulic cement mortars using 2in. Is code book cement and concrete indian standard codes free. Slag cement, has been incorporated into concrete projects for over a century to improve durability and reduce life cycle costs. A microfine ground blast furnace slag is made of composition having a blaine specific surface area between 8,000 and 20,000 cm 2 g. The report discusses acbfs aggregate production and properties, and the properties of concrete produced with acbfs coarse aggregate. The influence of limestone and al2o3 content in the slag on. A typical combination is 50% ggbs with 50% portland cement, 4but percentages of ggbs anywhere between 20. Concrete mixtures containing slag cement should be proportioned according to aci 211. The production of portland cement clinker accounts for about 5% of the total man made co2emissions. For more information, contact mtds rigid pavements and concrete materials section at 512 5065858.
Pdf a ground blastfurnace granulated slag used in the production of construction materials and items. Use of aircooled blast furnace slag as coarse aggregate in. Material properties of 3d printable highvolume slag cement. Blended cement may allow some concrete producers to take advantage of the benefits of slag cement despite storage constraints.
This research examined the properties of concrete containing grade 120 slag cement at replacement levels of 0%, 30%, and 50%. Astmc989 standard specification for slag cement for use. Standard specification for slag cement for use in concrete. However, aircooled slag does not have the hydraulic properties of watercooled slag. Grade 100 or better producer code plant and location supplied by 98366 aucem, anshan, china. The use of na 2 co 3 to improve the mechanical properties of highvolume slag cement hvsc is experimentally investigated in this study. The basic study on the prepartion of steel slag cement with gas. Through our extensive distribution system, we can deliver newcem for blending with conventional portland cement at the concrete plant to produce strong, highquality, durable concrete. Guide to the use of slag cement in concrete and mortar. By normally ground is meant slag compositions having a surface area of less than 8,000 cm 2 g. Abstract ground granulated blastfurnace slag ggbs, which is a byproduct of the manufacturing of iron in the blast furnace, can partially replace cement in concrete. Slag cement definition is a pozzolana cement using slag as the pozzolana material. All spectra are similar to those of polysulfide complexes contained in the.
Blast furnace slag cement an overview sciencedirect topics. Astmc989 standard specification for slag cement for use in. C125 terminology relating to concrete and concrete aggregates. Apr 26, 2020 slag cement blended with portland cement first appeared in germany in 1892, and four years later was introduced to workers in the united states. Slag cement is a recovered material from the iron production process, thus reducing the environmental impact of concrete mixtures. Longterm behaviour of fly ash and slag cement grouts for. Greater strength and durability for your most challenging projects. Groundgranulated blast furnace slag is highly cementitious and high in csh calcium silicate hydrates which is a strength enhancing. Groundgranulated blastfurnace slag ggbs or ggbfs is obtained by quenching molten iron slag a byproduct of iron and steelmaking from a blast furnace in water or steam, to produce a glassy, granular product that is then dried and ground into a fine powder. Portland blastfurnace slag cement is a mixture of ordinary. Ground granulated blast furnace slag, slag cement, blast furnace slag, granulated slag, pelletized.
Specification for coarse and fine aggregates from natural sources for concrete click here is 455. Blast furnance slag user guideline portland cement. Pdf the properties of slag cement and its influence on the. Slag cement helps reduce permeability, sulfate attack, and alkalisilica reaction creating a longer lasting and more resilient concrete. All books are in clear copy here, and all files are secure so dont worry about it. The properties of slag cement and its influence on the structure of. The chemical and mineralogical composition of portland cement, the conditions of its maturing, activators and. Enter synonyms, trade names or additional information found in section 1. Physical properties of the slag shall be in accordance with the requirements for fineness as determined by air permeability and air content, slag activity index, and compressive strength. Concrete with slag cement will have a slower rate of strength gain than concrete made with 100 percent portland cement.
The slag shall contain no additions and shall conform to the sulfide sulfur and sulfate chemical composition requirement. The granulated slag made by the rapid chilling of suitable molten slags from blast furnaces forms the basis of another group of constructional cements. Micheline moranvilleregourd, siham kamalibernard, in leas chemistry of cement and concrete fifth edition, 2019. The primary concrete properties studied were compressive strength, splittensile strength, and deicer scaling resistance. Us7410537b2 process for the production of portland slag. Portland slag cement specification by bureau of indian standards.
The influence of the additives on the high amount slag cement has been studied. In this study, a highvolume slag mortar was formulated according to rheology requirements of 3d concrete printing. In addition to the slag, 1020% portland cement pc and 510% hydrated lime. The maximum percentage of slag use in this type of cement is limited by british standard b.
Pdf the deicer salt scaling resistance of slag cement. C185 test method for air content of hydraulic cement mortar. Tiger portland blast furnace slag cement is special blended cement with low heat of hydration characteristics for mass concreting. Newcem slag cement is a finely ground, granulated blast furnace slag ggbfs, a product of the ironmaking process.
Slag cement, often called ground granulated blastfurnace slag ggbfs, is one of the most consistent cementitious materials used in concrete. Most concrete made with slag cement will have less. Use of aircooled blast furnace slag as coarse aggregate. Pdf characteristics of portland blastfurnace slag cement. Accordingly, the present invention provides an improved process for the production of portland slag cement using granulated blast furnace slag, which comprises.