Mix Design With Superplasticizers - Civil Engineering Portal
The Superplasticizers are broadly classified into four groups: sulfonated melamine formaldehyde condensate (SMF), sulphonated naphthalene formaldehyde condensate (SNF), modified lignosulphonate (MLS) and others including sulphonic acid ester, polyacrylates, polystryrene sulphonates, etc.
Superplasticizer - an overview | ScienceDirect Topics
A silicone water-repellent admixture has been found to be effective as a superplasticiser apart from being a water-repellent admixture for rammed earth materials. Silicone is used as a release agent and workability or compaction enhancement agent for many uses.
Mix Design of High Performance Concrete Using Silica Fume and
1. A mix design procedure for HPC using silica fume and super plasticizer is formulated by ACI method of mix design and available literature on HPC. 2. As the silica fume content increases the compressive strength increases up to 15% [HPC4] and then decreases. Hence the optimum replacement is 15%. 3.
Concrete Mix Design with Fly Ash and Superplasticizer - Civil
Superplasticizer : Liquid Sp.gr. 1.15, dosage 1% b.w.c. for required Workability Water content reduction for fly ash concrete : 5% Increase in cementitious material : 12% Designed plain concrete of above strength and workability: Water (free) = 170 kg/m3 OP Cement = 430 kg/m3 Fine aggregate = 707 kg/m3 Coarse aggregate = 1060 kg/m3
3000psi design mix using superplasticizer : r/civilengineering - Reddit
3000psi design mix using superplasticizer. Good day! Does anyone have a rough design mix for concrete of 3000psi strength using as little cement as possible and no fly ash? I was thinking of using superplasticizers instead of cement since cement is very expensive in our country and fly ash is also not readily available. Vote.
- Why are superplasticizers used in Indian cementitious mix?
- Superplasticizers are increasingly being used in Indian cementitious mix from the 1980 s onwards as they have proved their credibility in parameters like water and cement reduction apart from workability retention, strength gain, and ease to place and pump.
- What are the different types of superplasticizers?
- The Superplasticizers are broadly classified into four groups: sulfonated melamine formaldehyde condensate (SMF), sulphonated naphthalene formaldehyde condensate (SNF), modified lignosulphonate (MLS) and others including sulphonic acid ester, polyacrylates, polystryrene sulphonates, etc.
- What is a superplasticizer in cement mix?
- Superplasticizers (SP) are one of the most important constituents of cement cementitious mix mixes. It makes cementitious mix flowable at a low water-cement ratio without segregation and bleeding as required for high-performance concrete .
- What is a superplasticizer?
- Er. Kaushal Kishore , Superplasticizers belongs to a class of water reducer chemically different from the normal water reducers and capable of reducing water content by about 30%.
- Do superplasticizers reduce water in concrete mixes?
- The benefits obtained by Superplasticizers in the reduction of water in the concrete mixes are best illustrated by the following examples. With PPC (Flyash based) conforming to IS:1489-part-I-1991. 7 days strength 38.5 N/mm 2.
- Can silica fume & superplasticizers be used on high performance concrete?
- VinayagamP conducted experiments with silica fume and superplasticizers on high performance concrete with replacement of silica fume 0 to15% and the HPC mixes are tested experimentally for workability, compression, split tension and flexure and concluded that the performance of the design mixe are very good.
