You may have heard of type K concrete and in more recent years, type G. These classes of concrete are designed to create a stronger slab and reduce or eliminate cracking due to dry shrinkage. Consistency of type K cement remains constant, as the standard proportions never changes, thus making it ideal for the use as a shrinkage-compensating concrete. Phone: +971.4.516.3208 & 3209, Feedback via Email White Cement White Portland cement is the most important kind of white cement. Copyright © 2021 Elsevier B.V. or its licensors or contributors. CYPRESS, CA – CTS Cement Manufacturing Co. now offers CTS Type-G expansive mineral additive for use in shrinkage reduction and shrinkage compensation in portland cement concrete. A literature survey reveals that very little research has been conducted on the performance of this type of cement when additives are used with it. Expansive cement, when mixed with water, forms a paste that, after setting, tends to increase in volume to a significantly greater degree than Portland cement paste. The performance of the expansive concrete has been acceptable; small, random transverse cracks have developed in the bridge deck since the repair was completed. What is an expansive cement and what are the different types of expansive cement. P.K. Portland expansive cement, alunite expansive cement, iron oxide expansive cement, magnesia expansive cement, K-type expansive cement belong to Portland expansive cement. [1] Type K cement contains anhydrous calcium aluminate, which contributes to its expansive properties. The effects of expansive clinker particle size distribution, steel reinforcement, and water-cement ratio on the expansion characteristics were investigated.^ An attempt was made to improve upon some of the properties of type K expansive cement pastes by the addition of silica fume. Expansive cement shall conform to the requirements as to chemical composition prescribed. K Type expansive cement. Type K cement is a premixed cement with all the other chemicals used to make expansive cement. Phone: 1.248.848.3800, Home > Topics in Concrete > topicdetail, Definition: a cement that when mixed with water produces a paste that after setting increases in volume to a greater degree than does portland-cement paste. Shrinkage-compensating concrete is an expansive cement concrete in which expansion, if restrained, induc s compressive stresses which approxi- mately offset tensile stresses in the concrete induced by drying shrinkage. M Type expansive cement ScienceDirect ® is a registered trademark of Elsevier B.V. ScienceDirect ® is a registered trademark of Elsevier B.V. Properties of type K expansive cement of pure components I. Hydration of unrestrained paste of expansive component — Results. cm/gm. Date: 10/1/2005, Publication: Special Publication Farmington Hills, MI State of Knowledge, Behavior of Type K Shrinkage Compensating Concrete Under Various Forms of Mechanical Restraint, Hydration Properties and Technical Behavior of Calcium Sulfoaluminate Cements, Case Studies of Internal Curing of Bridge Decks in the Greater Cleveland Area, Shape Modification with Expansive Cement Concrete for Confinement with FRP Composites, Sulfate Soundness, Sulfate Attack, And Expansive Cement In Concrete, Self-Consolidating Concrete Piles Confined in FRP Tubes, Ettringite Formation and Sulfate Attack on Concrete, Behavior of Type K Shrinkage-Compensating Concrete under Various Forms of Mechanical Restraint, Dimensional Stability of Type K Concrete Slabs-on-Ground, Effect-Processing Variables on the Efficiency of Eucalyptus Pulp Fiber for Internal Curing, Experiences on the Use of Component G in México, Field Performance of Internally Cured Concrete Bridge Decks in New York State, History of Type K Shrinkage-Compensating Cement, Internal Curing: Lessons from Yesterday and Hope for Tomorrow, Joint Reduction Using Type K Shrinkage-Compensating Concrete, Prediction of Drying Shrinkage for Internally Cured HPC. Type K cement belongs to a special class known as shrinkage‐compensating cement. This expansion may be used to compensate for the volume decrease due to shrinkage, or to induce tensile stress in reinforcement. Generally, sulphoaluminated clinker is mixed with Portland cement with stabilizer. TYPE K CEMENT is engineered to minimize or eliminate drying shrinkage cracking by creating controlled expansion during placement and cure that overcomes the … Four large-scale bridge decks of 2 m×3 m were built using four different types of concrete mixtures: (1) a mixture containing 100% Portland cement, (2) a mixture incorporating expansive Type-K cement, (3) a mixture containing internally cured fine lightweight aggregate (LWA), and (4) a combined mixture of Type-K cement and internally cured LWA. The three types of expansive cements used in shrinkage-compensating concrete are listed above. Another type of expanding cement, developed in Russia around the same time, uses portland cement, gypsum and alumina cement. 6. Date: 10/1/1998, There are no Education Publications on Expansive Cement, View all ACI Education Publications on Expansive Cement », View all free presentations on Expansive Cement », There are no Online Learning Courses on Expansive Cement, View all ACI Online Learning Courses on Expansive Cement ». We use cookies to help provide and enhance our service and tailor content and ads. Type K cement consists of suitable additive, local Portland cement, and aggregates blended together proportionally to form concrete. Expansive cement concrete is a concrete made with Type K, Type M or Type S expansive cement. The design compressive strength of the HPFRCCs is 70 MPa. The major reason for the good performance of the expansive concrete in this project is that the use of a special material, the Type "K" Cypress, Calif.-based CTS Cement Manufacturing Û direct successor to the company that originated and patented Type K Û has continued research to improve the technology of expansive-cement concrete. ASTM Type K cement is made in a cement plant by inter-grinding Type K expansive clinker with Portland cement clinker and gypsum in the proper proportions. Des mesures au porosimètre à mercure ont révélé deux modules des dimension des pores. Mehta and P.J.M. Types of Expansive cements: Type K: Effect of Type of Cement and Expansive Agent on the Hardening of Steam-Cured Concrete p.105. Of cement contains, Portland cement with stabilizer the web page from the others its. Type M Type S expansive cement and calcium sulfate suitably proportioned KSC provides an effective way to produce K... 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