Please feel free to contact us! 0000043759 00000 n It is commonly known as PPC cement. 0000009218 00000 n 0000010213 00000 n Poor carbonization resistance. � 0000024480 00000 n Pozzolana is an artificial or natural material which has silica in it in a reactive form. Effect of Calcined Phosphogypsum in Portland Pozzolana Cement Concrete. 0000028723 00000 n When the three types of cement are cured at high temperatures, the hydration of the active mixture and clinker will be accelerated, and the early strength is improved without affecting the development of the later strength. 0000022005 00000 n PPC cement is available for decoration and artistic structures as its good surface finish. 0000027335 00000 n The hydraulic cementitious materials made of Portland cement clinker, pozzolanic material, and a proper amount of gypsum are all called Portland pozzolana cement (PPC cement). Limestone and clay are the main material for Portland cement production. 0000009365 00000 n But when they are mixed with water and lime at ambient temperatures, they will react with calcium hydroxide to form compounds possessing cementitious properties. 0000047757 00000 n 0000032207 00000 n Due to the large dry shrinkage, it is not suitable for dry areas. 0000033818 00000 n 1 4.1.2 Fineness and average compressive strength in lime reactivity of fly ash that is to be blended with finished Portland cement to produce Portland-pozzolana cement, when tested in 38 From 16-Sep-2020 To 22-Sep-2020 Test Certificate No. 0000010603 00000 n 0000047455 00000 n 6. These pozzolanic materials 0000021649 00000 n Comparisons are made between concretes with ordinary portland cement (OPC) and fly ash-based portland pozzolana cement (PPC) at three water-to-cement ratios (w/c=0.57, 0.47, and 0.37). Sensitive to temperature and humidity, suitable for high-temperature curing. 0000007272 00000 n Download. 0000029016 00000 n It is a Chinese  company that  specialized in manufacturing and exporting cement plants and cement equipment, providing the turnkey project from project design, equipment installation and equipment commissioning to equipment maintenance. Effect of Calcined Phosphogypsum in Portland Pozzolana Cement Concrete. 0000025353 00000 n 0000027138 00000 n Poor frost resistance. 0000011301 00000 n However, when the corrosion resistance requirements are high, it is not suitable for the application. 0000010392 00000 n They are similar in nature and scope of application, so they can be used interchangeably in most cases. 0000027312 00000 n Fine particle size raw materials are fed into the raw mill in a desired proportion for further particle size reduction, then they are stored in silos, meanwhile completing the material blending and homogenization process. 0000025174 00000 n We will respond as soon as possible. Successivamente il cemento pozzolanico , oltre che con pozzolana 4 JUNE 2009 TO IS 1489 (PART 2) : 1991 PORTLAND-POZZOLANA CEMENT ― SPECIFICATION ( Third Revision ) (Page 3, clause 10.2.1) ― Substitute the following for the existing: ‘The net mass of cement per bag may also be 25 kg, 10 kg, 5 kg, 2 kg or 1 kg subject to tolerances as given 0000018264 00000 n 0000012776 00000 n The Portland Pozzolana Cement is a kind of Blended Cement which is produced by either inter grinding of OPC clinker along with gypsum and pozzolanic materials in certain proportions or grinding the OPC clinker, gypsum and Pozzolanic materials separately and thoroughly blending them in certain proportions. 0000023384 00000 n 0000023585 00000 n While when steam curing or humid heat treatment is used, the hardening is accelerated, so this cement is not suitable for winter construction.