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what is the disadvantages of grinding the cement to higher

High alumina cement is very reactive and has very high compressive strength. High resistant to fire. Disadvantages of High Alumina Cement. The disadvantages of high alumina cement are as follows, As the heat required for the manufacture of this cement is more, the manufacturing cost of this cement is high.

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  • Fineness of Cement  Civil Engineering

    Fineness of Cement Civil Engineering

    Importance of Cement Fineness. Increasing fineness causes an increased rate of hydration, high strength, and high heat generation. Bleeding can be reduced by increasing fineness. However, increased fineness can also lead to the requirement of more water for workability, resulting in a higher possibility of dry shrinkage.

  • Advantages and Disadvantages of Hydraulic Cement  Civil

    Advantages and Disadvantages of Hydraulic Cement Civil

    Disadvantages of Hydraulic Cement. Hardens very fast, so it must be used within 10-15 minutes of mixing. This type of cement Cannot be used on frozen surfaces, or in areas where the temperature drops drastically within 48 hours. Not flexible, hence only suitable for providing mechanical support. Not recommended to be used when the temperature is below 48°F.

  • What is the relation between the fineness of cement and

    What is the relation between the fineness of cement and

    Advantages of Fineness of cement using : the cement develop the strength Earlier & so form work can be removed earlier thus reduces the cost & time in construction. Disadvantages of using Fineness of cement : the finely ground cement likely to deteriorate earlier due to setting because of moisture in air. Also the drying shrinkage is higher in case of finer cement.

  • Fineness Modulus of Cement by Dry Sieving

    Fineness Modulus of Cement by Dry Sieving

    The fineness of cement affects hydration rate, and in turn, the strength. Increasing fineness causes an increased rate of hydration, high strength, and high heat generation. Bleeding can be reduced by increasing fineness.

  • Fineness Test on Cement | The Construction Civil

    Fineness Test on Cement | The Construction Civil

    Fineness Test on Cement is carried out to check proper grinding of cement. Fineness of cement particles may be determined either by sieve test or by permeability apparatus test. In sieve test, the cement weighing 100 gm is taken and it is continuously passed for 15 minutes through standard BIS sieve no. 9.

  • What is meant by fineness of cement and why it is

    What is meant by fineness of cement and why it is

    Jan 28, 2019 · WHAT IS FINENESS OF CEMENT? Fineness of cement is property of cement that indicate particle size of cement and specific surface area. and indirectly effect heat of hydration. IMPORTANCE/EFFECT OF FINENESS OF CEMENT: Fineness of cement affects hydration rate hence the rate of strength gain.

  • Fineness Test on Cement | The Construction Civil

    Fineness Test on Cement | The Construction Civil

    Fineness Test on Cement. Fineness of cement particles may be determined either by sieve test or by permeability apparatus test. In sieve test, the cement weighing 100 gm is taken and it is continuously passed for 15 minutes through standard BIS sieve no. 9. The residue is then weighed and this weight should not be more than 10 per cent of original weight.

  • High Alumina Cement  Manufacture Characteristics and Uses

    High Alumina Cement Manufacture Characteristics and Uses

    High alumina cement is very reactive and has very high compressive strength. High resistant to fire. Disadvantages of High Alumina Cement. The disadvantages of high alumina cement are as follows, As the heat required for the manufacture of this cement is more, the manufacturing cost of this cement is high. As the fineness is kept not less than 2250 cm 2 /gram, which is very fine. Care to be taken that it …

  • Lecture No. : 4

    Lecture No. : 4

    cements are ground to different fineness. The disadvantages of fine grinding is that it is susceptible to air and early hydration. Increase in fineness of cement is also found to increase the drying shrinkage of concrete. Fineness is necessary to cover surfaces of the fine …

  • EnergyEfficient Technologies in Cement Grinding | IntechOpen

    EnergyEfficient Technologies in Cement Grinding | IntechOpen

    In this chapter an introduction of widely applied energy-efficient grinding technologies in cement grinding and description of the operating principles of the related equipments and comparisons over each other in terms of grinding efficiency, specific energy consumption, production capacity and cement quality are given. A case study performed on a typical energy-efficient Horomill® grinding ...

  • The roller press combines the disadvantages of the double

    The roller press combines the disadvantages of the double

    After 2005, the new cement grinding production line is mainly the combination of roller press and double closed circuit grinding system.This was considered to be the most advanced grinding process of the time.Now we have a lot of shortcomings in analyzing this process.Optimization space has disadvantages, and there are no better advantages than optimization.Here we first talk about the rolling ...

  • Improvement of cement performances through the use of

    Improvement of cement performances through the use of

    having grinding and separation units gathered in the same machinery, gas flow is higher, allowing the use of material with higher humidity content. Nevertheless, vertical mills also present certain disadvantages, if compared to traditional grinding systems. High pressures of the roller presses are required in case high Blaine values are desired,

  • 15 Different Types of Cement  Their Definition

    15 Different Types of Cement Their Definition

    High Alumina cement is manufactured by calcining a well-proportioned mixture of Limestone and Bauxite (Al 2 O 3, n H 2 O). No other raw material is added, not even gypsum is mixed with the clinker during grinding. The total Alumina content is generally above 32 percent. Properties: The most important properties of high alumina cement are ...

  • Cement  SlideShare

    Cement SlideShare

    Dec 03, 2012 · CHARACTERISTICS OF CEMENT When water is added to initiate dry mixtures of cement and sand, hydration of cement starts and it will binds sand particles as well as the surrounding surfaces of masonry and concrete. The proportion of cement and sand will decide the strength of mortar. A richer mix than 1:3 proportion is prone to shrinkage. Solid ...

  • Ordinary Portland Cement Constituents Properties Types

    Ordinary Portland Cement Constituents Properties Types

    Ordinary Portland cement is one of the most widely used type of Cement. Types, properties, constituents, manufacture, uses and advantages of Ordinary Portland Cement is discussed. In 1824 Joseph Aspdin gave the name as Portland cement as it has similarity in colour and quality found in Portland ...

  • INVESTIGATION ABOUT THE EFFECT OF CHEMICAL

    INVESTIGATION ABOUT THE EFFECT OF CHEMICAL

    clinker conveyed in the grinding stage. Their macroscopic effect is the reduction of cement coating on grinding media and mill lining and the improvement of hourly mill production and cement fineness. Using a suitable grinding aid, it is possible to manufacture more cement at higher fineness…

  • The Advantages and Disadvantages of Powder Grinding

    The Advantages and Disadvantages of Powder Grinding

    The Disadvantages of Ball Mill: 1. Low working efficiency and high unit electricity consumption. 2. Heavy equipment. Large-sized ball mill weighs several hundred of tons so that the one-time investment is high. 3. Low rotary speed. 4. High consumption of grinding media and lining board. 5. Loud noise and strong vibration during its working process.

  • Effect of clinker free lime and cement fineness on the

    Effect of clinker free lime and cement fineness on the

    fineness that had slight chemical effects on cement properties, i.e., faster setting, lower compressive strength, especially at early age, and higher autoclave expansion. Regarding durability, mixtures with the high free lime clinker led to higher expansion

  • The Advantages of PortlandLimestone Cement| Concrete

    The Advantages of PortlandLimestone Cement| Concrete

    Aug 12, 2014 · Overall fineness must be higher (for equivalent performance) for fineness of the clinker fraction to be similar to OPC. This means the production rate is slowed and some additional grinding energy is required. This is more than offset by the lower clinker content and related kiln fuel savings.