For aggregates used in PCC, another common gradation description for fine aggregate is the fineness modulus It is described in ASTM C 125 and is a single number used to describe a gradation curve It is defined as: The larger the fineness modulus, the more coarse the aggregate
Portland cement used for mortar preparation was conforming to the specifications of ASTM type I Fine aggregate was natural sand with 294 fineness modulus SSA were obtained from sewage treatment plant of Pinedo (Valencia, Spain) Sikanol-M was used as plasticizer
As fineness modulus of sand changes from 20 to 25 there is an increase in compressive strength from 4307 to 4900 MPa ie strength increases by 14% On the other hand by increasing Fineness Modulus from 25 to 3, Compressive strength increases from 4900 to ,
FINENESS MODULUS OF FINE AGGREGATE TxDOT Designation: Tex-402-A Effective Date: August 1999 1 SCOPE 11 This method determines the fineness modulus of concrete fine aggregate used in evaluation of natural and manufactured sands for portland cement concrete 12 The values given in parentheses (if provided) are not standard and may not be exact
CHAPTER 3 - PHYSICAL PROPERTIES OF STRUCTURAL LIGHTWEIGHT AGGREGATE 30 Introduction , (natural sand, gravel, and crushed stone), , Percentages retained on each sieve and fineness modulus, by weight and by volume, are
CHAPTER 2 SIEVE ANALYSIS AND FINENESS MODULUS Sampling Since the reason for sampling aggregates is to determine the gradation (particle size) of the aggregate, it is necessary that they be sampled correctly
What Is Fineness Modulus of Sand? Fineness modulus of sand (fine aggregate) is an index number which represents the mean size of the particles in sand It is calculated by performing sieve analysis with standard siev The cumulative percentage retained on each sieve is added and subtracted by 100 gives the value of fineness modulus
Jul 05, 2013· The fineness of sand affects the cost and properties of concrete Fineness Modulus is a term used as an index to the fineness or coarseness of sand The value of the fineness modulus is between 23 and 31 as in the following standard specifications: 1 IS 383: "Specifications for Coarse and Fine Aggregates from Natural Sources for Concrete"